Update Source/Documentation/Manual/start.rst

Co-authored-by: Chris Jakeman <github@jakeman.plus.com>

Author: sweiland-openrails

Source/Documentation/Manual/start.rst

@@ -33,7 +33,7 @@ However it is still possible to install routes manually as described in the next
 * ``Install``: Installs the selected route. A popup mentions the directory where the route is to be installed before starting the actual install. Installation profile gets added also.
 * ``Start``: Some routes have default start parameters and can be started via this button with these parameters.
 * ``Delete``: Delete route with this button. Take care: whole directory including any added and changed files gets deleted.
-* ``Update``: GitHub based routes can get updated after the install by means of this button. Check for updates is done when clicking this button. Or at the end of the information webpage. Also GitHub has a watch possibility for getting changes on the repository being mailed.
+* ``Update``: GitHub-based routes can get updated after the install by means of this button. A check for updates is made when clicking this button and updates may be reported at the end of the information webpage. Also GitHub has a watch feature which notifies you of changes by email.
 
 Installation Profiles
 =====================