Add information on the proposed skill API
* Add information on the proposed skill API
Exporting methods for other skills
Using exporting methods
Exploring skill apis using the CLI
* copy editing and add to nav
* improve description
* [Manifest.yml](skill-development/skill-structure/dependencies/manifest-yml.md)
* [Requirements files](skill-development/skill-structure/dependencies/requirements-files.md)
* [Filesystem access](skill-development/skill-structure/filesystem.md)
+ * [Skill API](skill-development/skill-structure/api.md)
* [Integration Tests](skill-development/voight-kampff/README.md)
* [Test Steps](skill-development/voight-kampff/test-steps.md)
* [Scenario Outlines](skill-development/voight-kampff/scenario-outlines.md)
