Updated readme

Fixed typos
Updated compatibility list
Updated readme
Updated the readme

Typos
Added clearer warning
v.1.0.2 - Reliability improvements

* Fixed a bug that prevented Handoff to be enabled in the System
Preferences, even after a successful patch (#21, #31)
* Added a backup step for freshly patched drivers, potentially useful
if a future OS X update disables the patching methods
* Added a prompt in case existing backups are found, asking whether to
overwrite the files or skip. Previous behaviour was to silently
overwrite.
* Removed the 13" MacBook Pro 2010 from the compatible list (#28, pull
#29)
* Minor optimisations
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Minor wording change

Removed the *and* from > "4) On OS X, sign out and then sign in again to your iCloud account."
Merge pull request #34 from highvoltag3/patch-1

Minor wording change. Thanks @highvoltag3.
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Minor wording change
Removed MBA 2010 compatibility

[Source](http://forums.macrumors.com/showpost.php?p=20232052&postcount=347)
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Added a news section
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Should you ever do a PRAM reset, make sure you understand the risks involved with any 3rd party hardware-related tools you may use, like "Trim Enabler". Please refer to their respective author websites in that case.
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