Add a help command for Meeseeks

[willingc]

Add a simple help command that would print out the commands that are currently listed in the README.

[Carreau]

@meeseeksdev help

[Carreau]

@meeseeksdev help

[lumberbot-app]

           The following commands are available:

           hello (Permission.none) 

• open (Permission.write)
• tag (Permission.admin)
• untag (Permission.admin)
• autopep8 (Permission.admin)
• zen (Permission.none)
• close (Permission.write)
• merge (Permission.write)
• migrate (Permission.admin)
• take (Permission.write)
• ready (Permission.write)
• backport (Permission.admin)

[blink1073]

Thanks, @meeseeksdev[bot], good bot.

[Carreau]

unnknown command ,

[Carreau]

@meeseeksdev help

[lumberbot-app]

The following commands are available:

(Permission.admin) tag

• (Permission.write) ready

• (Permission.admin) untag

• (Permission.admin) backport [to] {branch}

• (Permission.admin) autopep8

• (Permission.write) open

• (Permission.write) close

• (Permission.none) zen

• (Permission.admin) migrate [to] {org}/{repo}

   Need to be admin on target repo. 
  

• (Permission.write) merge

• (Permission.none) hello

[willingc]

@meeseeksdev zen

[Carreau]

@meeseeksdev zen

It's broken right now I pushed a bad commit.

[willingc]

Lol

[willingc]

I find it oddly calming to talk with the bot ;-)

[Carreau]

meeseeksdev help

[lumberbot-app]

The following commands are available:

@meeseeksdev ready {no arguments} (Permission.write)

Remove "waiting for author" tag, adds "need review" tag. Can also be issued
if you are the current PR author even if you are not admin. 

@meeseeksdev zen (Permission.none)

@meeseeksdev migrate [to] {org}/{repo} (Permission.admin)

Need to be admin on target repo. Replicate all comments on target repo and close current on.

@meeseeksdev open (Permission.write)

@meeseeksdev close (Permission.write)

@meeseeksdev untag tag[, tag, [...] ] (Permission.admin)

@meeseeksdev autopep8 (Permission.admin)

@meeseeksdev hello (Permission.none)

@meeseeksdev tag tag[, tag, [...] ] (Permission.admin)

@meeseeksdev backport [to] {branch} (Permission.admin)

@meeseeksdev merge (Permission.write)

[Carreau]

@willingc You should be able to retry zen.

[willingc]

@meeseeksdev[bot] zen