use pull to update the repo with the origin

Author: ThierryO

docs/manual-git-rstudio.html

@@ -812,7 +812,7 @@ <h3 id="include-your-accepted-work-to-local-master">Include your accepted work t
 <li>Switch to <code>master</code> branch</li>
 <li>Click <code>pull</code>.</li>
 </ol>
-<p>TODO-Thierry: add screenshot</p>
+<p><img src="manual-git/pull-rstudio.png" alt="git pull" /></p>
 </section>
 <section class="slide level2">
 

docs/manual-git/pull-rstudio.png

@@ -387,7 +387,7 @@ This will also activate the `pull` and `push` buttons
 1. Switch to `master` branch
 2. Click `pull`.
 
-TODO-Thierry: add screenshot
+![git pull](manual-git/pull-rstudio.png)
 
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