Allow easy copy-paste of manual backporting steps

[rochacbruno]

I notice that when manual backport is needed the copy-paste of the command using the "copy" icon will include the leading $ which is not desired, for a quick run I suggest removing those from the instructions leaving just the bare command.

Before: $ git remote add upstream https://github.com/ansible/galaxy_ng.git -> zsh: command not found: $

Now: git remote add upstream https://github.com/ansible/galaxy_ng.git

[webknjaz]

$ is a prompt the console lexer uses for differentiating the user input from the example output. If you drop it, this lexer would treat the text as console output, which is not what we want.

Also, if this change is desired, then maybe there should be a config toggle...

[rochacbruno]

You mean this?

Using console and $

$ pwd
/

no $

pwd
/

I think the github comment lexer doesn't differentiate this

[webknjaz]

This is the lexer that is supposed to be used: https://pygments.org/docs/lexers/#pygments.lexers.shell.BashSessionLexer.

The difference is that it'll try to only use highlighting on the prompt-lines but not the output:

$ echo "Hi there ${USER}"
Hi there wk