Hardcode doc edit backlink

[LilithHafner]

Currently, the "Edit on Github" link at https://docs.julialang.org/en/v1/stdlib/LibCURL/ is broken (JuliaLang/julia#50035). This PR fixes that link. See also: JuliaLang/julia#51375

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 11.51%. Comparing base (a65b64f) to head (8256539).
⚠️ Report is 8 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #113   +/-   ##
=======================================
  Coverage   11.51%   11.51%           
=======================================
  Files           2        2           
  Lines         139      139           
=======================================
  Hits           16       16           
  Misses        123      123           

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[LilithHafner]

Closing because @mortenpi is in the process of fixing this upstream. Sorry for the noise.

[LilithHafner]

This will eventually be fixed upstream, but I don't have a timeline for when. I think it is appropriate to merge this now and revert it once the upstream fix is confirmed.