Fix man page format

[marmarek]

Fixes QubesOS/qubes-issues#7041

[marmarek]

It's better but still doesn't render properly.

[codecov]

Codecov Report

Merging #81 (6d736e2) into master (339f79a) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #81   +/-   ##
=======================================
  Coverage   88.13%   88.13%           
=======================================
  Files          29       29           
  Lines        4881     4881           
=======================================
  Hits         4302     4302           
  Misses        579      579           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 339f79a...6d736e2. Read the comment docs.