Docs rework

[joypoddar]

Updated docs/intro.md with improvements wrt issue #10

Linking redundant issue #29 as recommended by @atapas.

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[joypoddar]

@Sachin-chaurasiya I am unable to view the changes requested

[Sachin-chaurasiya]

@Sachin-chaurasiya I am unable to view the changes requested

It's resolved @joypoddar