Apply suggestions from code review

Co-Authored-By: James Fletcher <42464962+jf205@users.noreply.github.com>
Co-Authored-By: Felicity Chapman <felicitymay@github.com>

Author: 3 people

docs/language/learn-ql/beginner/crown-the-rightful-heir.rst

@@ -1,7 +1,7 @@
 Crown the rightful heir
 =======================
 
-This is QL detective puzzle that shows you how to use recursion in QL to write more complex queries.
+This is a QL detective puzzle that shows you how to use recursion in QL to write more complex queries.
 
 King Basil's heir
 -----------------

docs/language/learn-ql/beginner/ql-tutorials.rst

@@ -1,14 +1,13 @@
 QL tutorials
 ============
 
-Solve puzzles to learn the basics of QL before analyzing code with CodeQL. The tutorials teach you how to write queries and introduce you to key logic concepts along the way.
+Solve puzzles to learn the basics of QL before you analyze code with CodeQL. The tutorials teach you how to write queries and introduce you to key logic concepts along the way.
 
 Before starting these tutorials, you can read the :doc:`Introduction to QL <../introduction-to-ql>` for a description of the language and some simple examples.
 
 .. toctree::
-   :glob:
 
    find-the-thief
    catch-the-fire-starter
    crown-the-rightful-heir
-   cross-the-river
+   cross-the-river