title: IMS-LTI Gem documentation
body: <p>This is not a programming question, but I still thought that this was the best forum to ask this question.</p>
  
  <p>Is there any documentation for <a href="https://github.com/instructure/ims-lti" rel="nofollow noreferrer">IMS-LTI</a> gem? I have to create an LTI 2 tool in ROR but I am unable to find any documentation of how to use this gem? I know one way is to dig through <a href="https://github.com/instructure/lti_tool_provider_example" rel="nofollow noreferrer">this example</a> but can someone point me to the right direction? Probably someone who went through the same process, how did you learn how to use it? I have been searching for last couple of days but I could not find any thing.</p>
  
  <p>Thank you</p>