text: Title: typo in Strings and backslashes
  Body: the [following](https://github.com/satwikkansal/wtfpython/blob/master/README.md#L1225-L1226) is untrue:
  ```
  >>> print(r"\\n")
  '\\\\n'
  ```
  
  it should be one of the following:
  ```
  >>> print(r"\\n")
  \\n
  >>> print(repr(r"\\n"))
  '\\\\n'
  ```