Port Graal's documentation to chaoss/grimoirelab-graal

[vchrombie]

The main aim of this issue is to port graal's documentation from the tutorial to chaoss/grimoirelab-graal.
https://chaoss.github.io/grimoirelab-tutorial/graal/intro/
https://github.com/chaoss/grimoirelab-tutorial/tree/master/graal

This should be done similarly how perceval documentation is ported to chaoss/grimoirelab-perceval docs.

1. Open a PR in chaoss/grimoirelab-graal adding the content, get it merged
2. Open a PR to remove the files from master branch, adding the link of the docs in the commit message

[HarshalRathore]

Hii there, newbie here. I'd like to work on this issue. Also I am new to open-source contribution so a little help would be appreciated.
Thank you.

[vchrombie]

Hii there, newbie here. I'd like to work on this issue. Also I am new to open-source contribution so a little help would be appreciated.

Hi @HarshalRathore
The issue is quite simple and I have mentioned the steps for fixing it.

Please let me know me if you any more help.