view CONTRIBUTING @ 35090:79cbf5cc4fb8

templates: reword 'back to filelog' link anchor text

This anchor text is problematic in two ways: first, the "back to" part
assumes that you got to the page showing it via the filelog. This is
not necessarily true, as there are other ways to get to that view
besides the filelog view, such as for example following the history of
lines from a file. Second, it uses "filelog" jargon, which refers to
how each file has its own revlog. This is internal jargon that has no
business being exposed to the end user.

I just reworded this template to improve understanding.

Our full contribution guidelines are in our wiki, please see:

https://www.mercurial-scm.org/wiki/ContributingChanges

If you just want a checklist to follow, you can go straight to

https://www.mercurial-scm.org/wiki/ContributingChanges#Submission_checklist

If you can't run the entire testsuite for some reason (it can be
difficult on Windows), please at least run `contrib/check-code.py` on
any files you've modified and run `python contrib/check-commit` on any
commits you've made (for example, `python contrib/check-commit
273ce12ad8f1` will report some style violations on a very old commit).