fix
There is no stype in neither documentation nor code, the correct parameter is speriod.
hide_goodsid fix
Merge pull request #1 from DemoniacDeath/master

proper name of speriod parameter
Merge branch 'master' of https://github.com/paymentwall/paymentwall-php into dev
Merge branch 'master' of https://github.com/paymentwall/paymentwall-php
indentation fix
Merge branch 'dev'
Update README.md
Installation details
Update README.md - code samples
updates to readme -
installation details
Switched to 'master' branch README.md file
Update README.md
Updates to README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md