[docs] remove mention of JQuery dependency for IE8

Since IE8 it's not the focus anymore and we will drop support for it with Bootstrap 4

Author: dmatteo

docs/src/GettingStartedPage.js

@@ -107,8 +107,6 @@ $ bower install react-bootstrap`
 
                   <p>React requires <a href="http://facebook.github.io/react/docs/working-with-the-browser.html#browser-support-and-polyfills">polyfills for non-ES5 capable browsers.</a></p>
 
-                  <p><a href="http://jquery.com">jQuery</a> is currently required only for IE8 support for components which require reading element positions from the DOM: <code>Popover</code> and <code>Tooltip</code> when launched with <code>OverlayTrigger</code>. We would like to remove this dependency in future versions but for now, including the following snippet in your page should have you covered:</p>
-
                   <div className="highlight">
                     <CodeExample
                       mode="htmlmixed"
@@ -123,7 +121,6 @@ $ bower install react-bootstrap`
   </script>
   <script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js"></script>
   <script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv-printshiv.min.js"></script>
-  <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
   <script src="//cdnjs.cloudflare.com/ajax/libs/es5-shim/3.4.0/es5-shim.js"></script>
   <script src="//cdnjs.cloudflare.com/ajax/libs/es5-shim/3.4.0/es5-sham.js"></script>
 <![endif]-->`