Merge pull request #2280 from jf205/codeql-homepage-links

docs: update banner links

Author: Felicity Chapman

docs/language/global-sphinx-files/_templates/layout.html

@@ -62,8 +62,8 @@
             <div class="linkcontainer">
                 <div class="linkbar">
                     <a href="https://help.semmle.com/QL/learn-ql/" target="_blank">Learn CodeQL</a>
-                    <a href="https://help.semmle.com/QL/learn-ql/ql-training.html" target="_blank">QL for variant analysis</a>
-                    <a href="https://help.semmle.com/QL/ql-tools.html" target="_blank">QL tools</a>
+                    <a href="https://help.semmle.com/QL/learn-ql/ql-training.html" target="_blank">Variant analysis</a>
+                    <a href="https://help.semmle.com/QL/ql-tools.html" target="_blank">Tools</a>
                     <a href="https://help.semmle.com/QL/ql-explore-queries.html" target="_blank">Queries</a>
                     <a href="https://help.semmle.com/QL/ql-reference-topics.html" target="_blank">Reference</a>
                     <a href="https://blog.semmle.com" target="_blank">Blog</a>