docs: further reading for codeql queries section

docs/language/learn-ql/intro-to-data-flow.rst

@@ -79,8 +79,7 @@ However, since ``y`` is derived from ``x``, it is influenced by the untrusted or
 In QL, taint tracking extends data flow analysis by including steps in which the data values are not necessarily preserved, but the potentially insecure object is still propagated. 
 These flow steps are modeled in the taint-tracking library using predicates that hold if taint is propagated between nodes.
 
-What next?
+Further reading
-**********
+***************
 
-- Search for ``DataFlow`` and ``TaintTracking`` in the `standard CodeQL libraries <https://help.semmle.com/QL/ql-libraries.html>`__ to learn more about the technical implementation of data flow analysis for specific programming languages.
+- `Exploring data flow with path queries <https://help.semmle.com/codeql/codeql-for-vscode/procedures/exploring-paths.html>`__
-- Visit `Learning CodeQL <https://help.semmle.com/QL/learn-ql/>`__ to find language-specific tutorials on data flow and other topics.

docs/language/learn-ql/locations.rst

@@ -115,3 +115,8 @@ The ``toString()`` predicate
 ----------------------------
 
 All classes except those that extend primitive types, must provide a ``string toString()`` member predicate. The query compiler will complain if you don't. The uniqueness warning, noted above for locations, applies here too.
+
+Further reading
+---------------
+
+- `CodeQL repository <https://github.com/github/codeql>`__

docs/language/learn-ql/writing-queries/debugging-queries.rst

@@ -151,4 +151,4 @@ Now the structure we want is clearer. We've separated out the easy part into its
 Further information
 -------------------
 
-- Find out more about QL in the `QL language reference <https://help.semmle.com/QL/ql-handbook/index.html>`__.
+.. include:: ../../reusables/codeql-ref-tools-further-reading.rst

docs/language/learn-ql/writing-queries/introduction-to-queries.rst

@@ -150,12 +150,3 @@ Query help files
 ****************
 
 When you write a custom query, we also recommend that you write a query help file to explain the purpose of the query to other users. For more information, see the `Query help style guide <https://github.com/github/codeql/blob/master/docs/query-help-style-guide.md>`__ on GitHub, and the :doc:`Query help files <query-help>`. 
-
-What next?
-==========
-
-- See the queries used in real-life variant analysis on the `GitHub Security Lab website <https://securitylab.github.com/research>`__.
-- To learn more about writing path queries, see :doc:`Creating path queries <path-queries>`.
-- Take a look at the `built-in queries <https://help.semmle.com/wiki/display/QL/Built-in+queries>`__ to see examples of the queries included in CodeQL.
-- Explore the `query cookbooks <https://help.semmle.com/wiki/display/QL/QL+cookbooks>`__ to see how to access the basic language elements contained in the CodeQL libraries.
-- For a full list of resources to help you learn CodeQL, including beginner tutorials and language-specific examples, visit `Learning CodeQL <https://help.semmle.com/QL/learn-ql/>`__.

docs/language/learn-ql/writing-queries/path-queries.rst

@@ -189,9 +189,8 @@ The ``element`` that you select in the first column depends on the purpose of th
 
 The alert message defined in the final column in the ``select`` statement can be developed to give more detail about the alert or path found by the query using links and placeholders. For more information, see :doc:`Defining the results of a query <select-statement>`. 
 
-What next?
+Further reading
-**********
+***************
 
-- Take a look at the path queries for `C/C++ <https://help.semmle.com/wiki/label/CCPPOBJ/path-problem>`__, `C# <https://help.semmle.com/wiki/label/CSHARP/path-problem>`__, `Java <https://help.semmle.com/wiki/label/java/path-problem>`__, `JavaScript <https://help.semmle.com/wiki/label/js/path-problem>`__, and `Python <https://help.semmle.com/wiki/label/python/path-problem>`__ to see examples of these queries.
+- `Exploring data flow with path queries <https://help.semmle.com/codeql/codeql-for-vscode/procedures/exploring-paths.html>`__
-- Explore the `query cookbooks <https://help.semmle.com/wiki/display/QL/QL+cookbooks>`__ to see how to access the basic language elements contained in the CodeQL libraries.
+- `CodeQL repository <https://github.com/github/codeql>`__
-- For a full list of resources to help you learn CodeQL, including beginner tutorials and language-specific examples, visit `Learning CodeQL <https://help.semmle.com/QL/learn-ql/>`__.

docs/language/learn-ql/writing-queries/query-help.rst

@@ -206,8 +206,3 @@ The included file, `ThreadUnsafeICryptoTransformOverview.qhelp <https://github.
       </fragment>
    </qhelp>
 
-Further information
-===================
-
-- To learn more about contributing to the standard CodeQL queries and libraries, see our `Contributing guidelines <https://github.com/github/codeql/blob/master/CONTRIBUTING.md>`__ on GitHub. 
-- To learn more about writing custom queries, and how to format your code for clarity and consistency, see `Writing CodeQL queries <https://help.semmle.com/QL/learn-ql/writing-queries/writing-queries.html>`__.

docs/language/learn-ql/writing-queries/query-metadata.rst

@@ -99,7 +99,3 @@ Here is the metadata for one of the standard Java queries:
 .. |image0| image:: ../../images/query-metadata.png
 
 For more examples of query metadata, see the standard CodeQL queries in our `GitHub repository <https://github.com/github/codeql>`__.
-
-
-
-

docs/language/learn-ql/writing-queries/select-statement.rst

@@ -105,3 +105,8 @@ The new elements added here don't need to be clickable, so we added them directl
 .. image:: ../../images/ql-select-statement-similarity.png
    :alt: Results showing the extent of similarity
    :class: border
+
+Further reading
+---------------
+
+- `CodeQL repository <https://github.com/github/codeql>`__