Update docs/codeql/codeql-for-visual-studio-code/running-codeql-queries-at-scale-with-mrva.rst

Co-authored-by: James Fletcher <[email protected]>

Author: felicitymay

docs/codeql/codeql-for-visual-studio-code/running-codeql-queries-at-scale-with-mrva.rst

@@ -51,7 +51,7 @@ The name of the controller repository is saved in your settings for the CodeQL e
 Running a query at scale using variant analysis
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-#. Expand the **Variant Analysis Repositories** section, to show the default lists which include a selection 10, 100, and 1,000 public repositories on GitHub.com for the language that you are analyzing.
+#. Expand the **Variant Analysis Repositories** section, to show the default lists which include a selection of 10, 100, and 1,000 public repositories on GitHub.com for the language that you are analyzing.
 
 #. Select which GitHub repository or repositories you want to run your query against. Click a row to highlight it, and then click **Select** to select that repository, organization, or list of repositories. If you want to add a new repository, organization, or list, use the options in the header panel. For information, see ":ref:`Creating custom lists of repositories <custom-lists>`", later in this article.