doc(encryption): Add a link to MSC4287

[poljar]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #5956 will not alter performance

_{Comparing poljar/msc-link-backup-preference (ff87963) with main (4d3125e)¹}

Summary

✅ 50 untouched

Footnotes

1. No successful run was found on main (ad58607) during the generation of this report, so 4d3125e was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.51%. Comparing base (ad58607) to head (90cf292).
⚠️ Report is 2 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5956   +/-   ##
=======================================
  Coverage   88.51%   88.51%           
=======================================
  Files         363      363           
  Lines      103469   103469           
  Branches   103469   103469           
=======================================
+ Hits        91587    91589    +2     
+ Misses       7528     7527    -1     
+ Partials     4354     4353    -1     

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[richvdh]

thankyou sir