解決したかったこと

2語で構成されるコマンド(git pushとか)
を単純にman git pushみたいにすると

NAME
       git - the stupid content tracker

SYNOPSIS
       git [--version] [--help] [-C <path>] [-c <name>=<value>]
           [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]
           [-p|--paginate|--no-pager] [--no-replace-objects] [--bare]
           [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]
           [--super-prefix=<path>]
           <command> [<args>]

DESCRIPTION
       Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and
       full access to internals.

最初の引数gitのマニュアルが表示されてしまう

ハイフン`-`で繋げる

man git-pushとすると

NAME
       git-push - Update remote refs along with associated objects

SYNOPSIS
       git push [--all | --mirror | --tags] [--follow-tags] [--atomic] [-n | --dry-run] [--receive-pack=<git-receive-pack>]
                  [--repo=<repository>] [-f | --force] [-d | --delete] [--prune] [-v | --verbose]
                  [-u | --set-upstream] [--push-option=<string>]
                  [--[no-]signed|--sign=(true|false|if-asked)]
                  [--force-with-lease[=<refname>[:<expect>]]]
                  [--no-verify] [<repository> [<refspec>...]]

DESCRIPTION
       Updates remote refs using local refs, while sending objects necessary to complete the given refs.

       You can make interesting things happen to a repository every time you push into it, by setting up hooks there. See documentation for git-
       receive-pack(1).

と無事にマニュアルが見れる