Clarify APK editing

There appears to be no documentation and there is no obvious way to do it in the user interface.
After editing smali assemblies, how can the currently open apk be regenerated so that it can be run on android?

Review the current user interface and existing documentation to find how the open APK is rebuilt after smali assemblies are edited. Document the required regeneration steps and how to produce an APK that can be run on Android, including any relevant UI controls.

Written by the indexing model from the issue text.