add better API.
because current API is redundant because the pass every time testingT.
Simplify the API by using the new assertion.
add more examples to README and doc.go.
Merge forward assertions.
Merge branch 'taichi-add_compatible_assertion_struct'
add wrapper around the `EqualError` function

* add a `*Assertions` wrapper around the `EqualError` function
* add tests
add `EqualError` to doc.go

* Add both the standard `EqualError` and the wrapped `EqualError`
Merge pull request #60 from 2pi/EqualErrorWrapper

add wrapper around the `EqualError` function
allow github syntax highlighting
Merge pull request #61 from dickeyxxx/readme-syntax

allow github syntax highlighting
added more complete first example
added more complete second example
Merge pull request #62 from dickeyxxx/readme

Readme
Syncing upstream with fork
renaming AlmostEqual() to AlmostEqualFloat()