diff --git a/public/01-introduction.html b/public/01-introduction.html
index 24164b1d3fa8838f249a6c187fc1cbed14d6e624..fb06b554865f34795a31ce9069a148e665314106 100644
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@@ -205,11 +205,6 @@ div.csl-indent {
   <div class="sidebar-item-container"> 
   <a href="/07-basic_statistics.html" class="sidebar-item-text sidebar-link"><span class='chapter-number'>6</span>  <span class='chapter-title'>Basic statistics for spatial analysis</span></a>
   </div>
-</li>
-        <li class="sidebar-item">
-  <div class="sidebar-item-container"> 
-  <a href="/08-exercices.html" class="sidebar-item-text sidebar-link">Exercice</a>
-  </div>
 </li>
         <li class="sidebar-item">
   <div class="sidebar-item-container"> 
@@ -266,10 +261,10 @@ div.csl-indent {
 </nav>
 <section id="use-of-r" class="level2" data-number="1.1">
 <h2 data-number="1.1"><span class="header-section-number">1.1</span> Use of R</h2>
-<div class="callout-important callout callout-style-default callout-captioned">
+<div class="callout-importan callout callout-style-default no-icon callout-captioned">
 <div class="callout-header d-flex align-content-center">
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-<i class='callout-icon'></i>
+<i class='callout-icon no-icon'></i>
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 <div class="callout-caption-container flex-fill">
 REMINDER : R TIPS
@@ -280,7 +275,7 @@ REMINDER : R TIPS
 <li><p>Comment your code ! (<code># important informations on the code</code>)</p></li>
 <li><p>Check your R objects ! (<code>plot()</code>, <code>print()</code>, <code>View()</code> , …)</p></li>
 <li><p>Listen to R outputs ! (Errors AND Warnings)</p></li>
-<li><p>Get help ! (<code>?name_of_function</code>, internet, other users)</p></li>
+<li><p>Get help ! (<code>?name_of_function</code>, internet, others users)</p></li>
 <li><p>Keep calm and take a break !</p></li>
 </ol>
 </div>
@@ -423,7 +418,7 @@ Note
 <div class="sourceCode" id="cb11"><pre class="sourceCode r cell-code"><code class="sourceCode r"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a>district <span class="ot">&lt;-</span> <span class="fu">st_read</span>(<span class="st">&quot;data_cambodia/district.shp&quot;</span>)</span></code></pre></div>
 <div class="cell-output cell-output-stdout">
 <pre class="code-out"><code>Reading layer `district&#39; from data source 
-  `C:\Users\UNiK\Documents\R_works\IRD\RGeoSpatial_Training\rspatial-for-onehealth\data_cambodia\district.shp&#39; 
+  `C:\Users\UNiK\Documents\R_works\IRD\Rspatial\rspatial-for-onehealth\data_cambodia\district.shp&#39; 
   using driver `ESRI Shapefile&#39;
 Simple feature collection with 197 features and 10 fields
 Geometry type: MULTIPOLYGON
@@ -464,7 +459,7 @@ Available layers:
 <div class="sourceCode" id="cb15"><pre class="sourceCode r cell-code"><code class="sourceCode r"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a>road <span class="ot">&lt;-</span> <span class="fu">st_read</span>(<span class="st">&quot;data_cambodia/cambodia.gpkg&quot;</span>, <span class="at">layer =</span> <span class="st">&quot;road&quot;</span>)</span></code></pre></div>
 <div class="cell-output cell-output-stdout">
 <pre class="code-out"><code>Reading layer `road&#39; from data source 
-  `C:\Users\UNiK\Documents\R_works\IRD\RGeoSpatial_Training\rspatial-for-onehealth\data_cambodia\cambodia.gpkg&#39; 
+  `C:\Users\UNiK\Documents\R_works\IRD\Rspatial\rspatial-for-onehealth\data_cambodia\cambodia.gpkg&#39; 
   using driver `GPKG&#39;
 Simple feature collection with 6 features and 9 fields
 Geometry type: MULTILINESTRING
@@ -556,7 +551,7 @@ Tip
 </div>
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-<p><span class="hidden" data-render-id="quarto-int-sidebar-title">Mapping and spatial analyses in R for One Health studies</span> <span class="hidden" data-render-id="quarto-int-navbar-title">Mapping and spatial analyses in R for One Health studies</span> <span class="hidden" data-render-id="quarto-int-next"><span class="chapter-number">2</span>  <span class="chapter-title">Data Acquisition</span></span> <span class="hidden" data-render-id="quarto-int-prev">Preface</span> <span class="hidden" data-render-id="quarto-int-sidebar:/index.html">Preface</span> <span class="hidden" data-render-id="quarto-int-sidebar:/01-introduction.html"><span class="chapter-number">1</span>  <span class="chapter-title">Introduction</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/02-data_acquisition.html"><span class="chapter-number">2</span>  <span class="chapter-title">Data Acquisition</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/03-vector_data.html"><span class="chapter-number">3</span>  <span class="chapter-title">Using vector data</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/04-raster_data.html"><span class="chapter-number">4</span>  <span class="chapter-title">Using raster data</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/05-mapping_with_r.html"><span class="chapter-number">5</span>  <span class="chapter-title">Mapping With R</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/07-basic_statistics.html"><span class="chapter-number">6</span>  <span class="chapter-title">Basic statistics for spatial analysis</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/08-exercices.html">Exercice</span> <span class="hidden" data-render-id="quarto-int-sidebar:/references.html">References</span> <span class="hidden" data-render-id="footer-left">UMR 228 ESPACE-DEV</span> <span class="hidden" data-render-id="footer-right"><img src="img/ird_footer.png" height="50" /></span></p>
+<p><span class="hidden" data-render-id="quarto-int-sidebar-title">Mapping and spatial analyses in R for One Health studies</span> <span class="hidden" data-render-id="quarto-int-navbar-title">Mapping and spatial analyses in R for One Health studies</span> <span class="hidden" data-render-id="quarto-int-next"><span class="chapter-number">2</span>  <span class="chapter-title">Data Acquisition</span></span> <span class="hidden" data-render-id="quarto-int-prev">Preface</span> <span class="hidden" data-render-id="quarto-int-sidebar:/index.html">Preface</span> <span class="hidden" data-render-id="quarto-int-sidebar:/01-introduction.html"><span class="chapter-number">1</span>  <span class="chapter-title">Introduction</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/02-data_acquisition.html"><span class="chapter-number">2</span>  <span class="chapter-title">Data Acquisition</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/03-vector_data.html"><span class="chapter-number">3</span>  <span class="chapter-title">Using vector data</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/04-raster_data.html"><span class="chapter-number">4</span>  <span class="chapter-title">Using raster data</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/05-mapping_with_r.html"><span class="chapter-number">5</span>  <span class="chapter-title">Mapping With R</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/07-basic_statistics.html"><span class="chapter-number">6</span>  <span class="chapter-title">Basic statistics for spatial analysis</span></span> <span class="hidden" data-render-id="quarto-int-sidebar:/references.html">References</span> <span class="hidden" data-render-id="footer-left">UMR 228 ESPACE-DEV</span> <span class="hidden" data-render-id="footer-right"><img src="img/ird_footer.png" height="50" /></span></p>
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 <div id="quarto-meta-markdown" class="hidden">
 <p><span class="hidden" data-render-id="quarto-metatitle">Mapping and spatial analyses in R for One Health studies - <span id="introductionx" class="quarto-section-identifier"><span class="chapter-number">1</span>  <span class="chapter-title">Introduction</span></span></span> <span class="hidden" data-render-id="quarto-twittercardtitle">Mapping and spatial analyses in R for One Health studies - <span id="introductionx" class="quarto-section-identifier"><span class="chapter-number">1</span>  <span class="chapter-title">Introduction</span></span></span> <span class="hidden" data-render-id="quarto-ogcardtitle">Mapping and spatial analyses in R for One Health studies - <span id="introductionx" class="quarto-section-identifier"><span class="chapter-number">1</span>  <span class="chapter-title">Introduction</span></span></span> <span class="hidden" data-render-id="quarto-metasitename">Mapping and spatial analyses in R for One Health studies</span></p>