`man htop` return nothing for htop installed as snap

[Norbert]

Steps to reproduce:
1. Have Ubuntu 20.04 LTS installed, without deb-version of htop
2. Run `snap install htop`, wait it to finish
3. Run `man htop`

Expected results:
* `man htop` shows man-page

Actual results:
* `man htop` does not show man-page

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: snap (not installed)
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.14
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: MATE
Date: Fri Jan 8 20:59:41 2021
InstallationDate: Installed on 2020-04-23 (260 days ago)
InstallationMedia: Ubuntu-MATE 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: snap
UpgradeStatus: No upgrade log present (probably fresh install)

[Zygmunt Krynicki (zyga)]

Manual pages are not yet supported by snapd. This is expected.

[Ian Johnson (anonymouse67)]

This is a duplicate of the existing bug report about adding man pages which I have attached to this bug (the other bug has more information on the situation)