Insert links to all files matching a query in their contents

The aforementioned denote-add-links command takes a query that matches it against file names (Insert links to all files matching a query in their file name). It then creates a typographic list (bullet list) with direct links to all the matching files. Users who wish to achieve the same result but have the query be matched against file contents (not file names), can use the command denote-link-to-all-files-with-contents.

The command denote-link-to-all-files-with-contents is the counterpart of denote-link-to-file-with-contents (Add a direct link to a file whose contents include the given query).