Updating README and bringing it Up-2-date

[AsherThomasBabu]

Replaced old content with the latest from arduino.cc and removed broken links

[per1234]

I realize you are just copying the text from the library reference page, but I think it's worth avoiding migrating the typos along with the content.

[AsherThomasBabu]

I realize you are just copying the text from the library reference page, but I think it's worth avoiding migrating the typos along with the content.

@per1234 I just found that the old README was totally broken and didn't match the reference. I am sorry for the typos, I thought the content on the website might have been checked and corrected. Thanks for your time. I have committed the requested changes.

Kindly review and also check out my Proposal on the GSoC tracker. Please do give your opinion, It will help a lot in refining my Proposal further.

[per1234]

I am sorry for the typos

No need for apologies. They're not your typos! With such a large amount of documentation to maintain, it's inevitable to find some things like this here and there.

[AsherThomasBabu]

Thank you @per1234

[CLAassistant]

All committers have signed the CLA.