Update workflows (#40)

* Add 'api' folder to .gitignore, since it is auto-generated * Update documentation workflow * Update build and test workflow * Update release workflow * Update example deployment workflow

Author: FantasyTeddy

.documentation/.gitignore

@@ -6,4 +6,5 @@
 /**/packages/
 /**/bin/
 /**/obj/
-_site
+/_site
+/api