Document lengthy un-pause after resuming from suspend

[alimirjamali]

Supplements: QubesOS/qubes-core-admin#673
Main issue: QubesOS/qubes-issues#1611

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.65%. Comparing base (52083d1) to head (e2bd2ef).
Report is 16 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #350      +/-   ##
==========================================
- Coverage   75.67%   75.65%   -0.03%     
==========================================
  Files          52       52              
  Lines        9020     9020              
==========================================
- Hits         6826     6824       -2     
- Misses       2194     2196       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.