CompatHelper: add new compat entry for Literate at version 2 for package nmf, (keep existing compat)

[github-actions]

This pull request sets the compat entry for the Literate package to 2 for package nmf.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.
Note: Consider registering a new release of your package immediately after merging this PR, as downstream packages may depend on this for tests to pass.

[coveralls]

Pull Request Test Coverage Report for Build 1226182541

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 94.424%

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Totals
Change from base Build 1226181847:	0.0%
Covered Lines:	508
Relevant Lines:	538

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💛 - Coveralls

[codecov-commenter]

Codecov Report

Merging #135 (01a06bd) into master (264e0c0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #135   +/-   ##
=======================================
  Coverage   94.42%   94.42%           
=======================================
  Files          12       12           
  Lines         538      538           
=======================================
  Hits          508      508           
  Misses         30       30           

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Continue to review full report at Codecov.

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