Move content from README to course-details

Author: crichID

course-details.md

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+Organizations of all sizes and in all industries are chatting about InnerSource concepts. This course walks you through some of the key concepts of InnerSource and helps you build up an internal toolkit for adopting InnerSource practices. 
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+After completing this course, you'll be able to:
+- contrast user versus organization owned projects
+- make recommendations about the number of GitHub organizations you should have
+- create discoverable repositories
+- create robust repository READMEs
+- use issue and pull request templates
+- build transparency into repositories
+- measure the success of InnerSource within your organization
+- distribute your InnerSource toolkit