Update readme.md
Merge branch 'master' of github.com:paymill/paymill-js
Merge branch 'master' of github.com:paymill/paymill-js

# By phimi
# Via phimi (1) and stoilkov (1)
* 'master' of github.com:paymill/paymill-js:
  added documentation for apiOmat
  Added apiOmat integration
Fixes #1 updated dependencies, increased test timeout
Fixes #2 added documentation for the paymill list object
Fixes #3 length and type headers are not necessary for parse
test timeout fix
new release to npm