Update go/ql/lib/change-notes/2023-10-20-enclosing-callable-for-external-files.md

Co-authored-by: Michael B. Gale <[email protected]>

Author: owen-mc

go/ql/lib/change-notes/2023-10-20-enclosing-callable-for-external-files.md

@@ -1,4 +1,4 @@
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 category: fix
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-* Fixed a bug where data flow nodes in files that are not in the project being analyzed (such as libraries) and are not contained within a function were not given an enclosing callable. Note that for files that are not contained within a function, the enclosing callable is considered to be the file itself. This may cause some minor changes to results.
+* Fixed a bug where data flow nodes in files that are not in the project being analyzed (such as libraries) and are not contained within a function were not given an enclosing `Callable`. Note that for nodes that are not contained within a function, the enclosing callable is considered to be the file itself. This may cause some minor changes to results.