update collaboration/contribution guideline towards markdown

[orangecms]

We have an older section that encourages ReST, though we wanted to use markdown; only document headlines (the first one on top) really need to be written in ReST now as far as I understand the Sphinx docs. I'm not sure about remarks (| Warning: Be sure to read this carefully |).

The file in question is collaborate/Readme.md.

[orangecms]

Addendum:

It seems like remarks are actually just empty tables with only a headline; hence the line after it | --- |.

I.e.,

| Remarkable headline |
| --- |

looks like a "hint"; and here on GitHub:

Remarkable headline

[pizofreude]

From what I understand about this issue are:

1. An update for the collaborate/Readme.md file to serve as guideline for any user to start collaborating or contributing in the Pocket Science Lab Project
2. The guideline must be written to guide collaborators using Markdown instead of ReST format for their project description and tutorials.
3. Provide open-source alternative tool that tailored towards Markdown instead of using notex or any other ReST editor.
4. Explain Best-Practices workflow for all user to refer when contributing.
5. Only document headlines (the first one on top) really need to be written in ReST
6. For remarks: place empty tables with only headline in this Readme.md as follows:
   | Remarkable headline |
   | --- |

Am I understanding the issue correctly? I would love to contribute and become member of the FOSSASIA community. Feel free to assign me this task. Thanks.

[Satarupa22-SD]

@orangecms could you please assign this issue to me. Thanks!

[orangecms]

There is no assignment, just file pull requests.

[Satarupa22-SD]

@orangecms I have created a PR(#132) on the same, please look into it. I am open to any feedback or changes as needed. Thanks!