Update the book

Author: garrettgman

docs/basics.html

@@ -799,7 +799,7 @@ <h2><span class="header-section-number">1.6</span> Scripts</h2>
 
 <div class="rmdtip">
 <p><strong>Extract function</strong></p>
-<p>RStudio comes with a tool that can help you build functions. To use it, highlight the lines of code in your R script that you want to turn into a function. Then click <code>Code &gt; Extract Function</code> in the menu bar. RStudio will ask you for a function name to use and then wrap you code in a <code>function</code> call. It will scan the code for undefined variables and use these as arguments.</p>
+<p>RStudio comes with a tool that can help you build functions. To use it, highlight the lines of code in your R script that you want to turn into a function. Then click <code>Code &gt; Extract Function</code> in the menu bar. RStudio will ask you for a function name to use and then wrap your code in a <code>function</code> call. It will scan the code for undefined variables and use these as arguments.</p>
 You may want to double-check RStudio’s work. It assumes that your code is correct, so if it does something surprising, you may have a problem in your code.
 </div>