nvda

2347833d - Unified support for add-on documentation.

Unified support for add-on documentation. Add-ons can specify a documentation file name using the docFileName parameter in their manifests. If an add-on has documentation, the Add-on help button in the Add-ons Manager will open this file. Fixes #2694. Authors: Noelia Ruiz Martínez <nrm1977@gmail.com>, James Teh <jamie@nvaccess.org>