Difference between FM-like fonts and Unicode

[pathumego]

I suggest we do a separate article or a section on this. Related to #4

[pathumego]

@sdasun Can we merge some text from your article on Grantha blog into this?

[sdasun]

@pathumego sure, take anything :) I was worried about destroying the writing style. I think it's good to add links to your YouTube videos also at the end (maybe in a separate section?)