Improve the readme

[abhi18av]

@sharma-shruti , let's try to improve the quality of readme on this, from the perspective of the first time user.

Let's give it a shot we'll discuss more on the PR itself.

[abhi18av]

@sharma-shruti , I've merged the PR #6 regarding the code documentation.

For the user documentation, let's make a push and take feedback from @Ankita-1211 .

[Ankita-1211]

@abhi18av @sharma-shruti
Just went through the script. Yes the readme needs some improvisation.
First time experience is , it's confusing .

Why need of point 3.

Let's discuss more in this.

[abhi18av]

Thanks for the quick revert @Ankita-1211 !

I've updated the user-documentation i.e. the Readme.md file and separated the code-documentation which is now inside the main.nf

This was done via 498a985

[abhi18av]

I've made other changes as well, here's the summary

[abhi18av]

TODO: add an index to the readme

[Ankita-1211]

This is good.

@abhi18av Could you please explain to me why options part of readme has "trimmed untrimmed."
In Bioinfo, these term are used for trimming a data having adapters.

**Utility still confuses me. The header says "wrapper for gunzip".

[abhi18av]

Hmm, @Ankita-1211 , I thought that it might be helpful that way - but apparently not.

Okay, let us @sharma-shruti @Ankita-1211 and @abhi18av connect this weekend about this. We would also present you with more of our ideas regarding the options.