use the Composer package name

It's a good way to reference a library.
grammar
formatting
syntax
reference the fact

The sentence is still not very clear, but I think people can better
understand it.
fix broken sentence

I'm not sure this is exactly what was meant here, but at least this
version of the sentence is grammatically correct.
fix another broken sentence
Merge pull request #53 from greg0ire/minor_fixes

Minor fixes