Clarify the text on Windows for ARM support

Author: ckerr

docs/tutorial/support.md

@@ -69,7 +69,12 @@ Windows 7 and later are supported, older operating systems are not supported
 (and do not work).
 
 Both `ia32` (`x86`) and `x64` (`amd64`) binaries are provided for Windows.
-Please note, the `ARM` version of Windows is not supported for now.
+
+The Windows `ARM` binaries are not supported yet due to limited team
+resources; however, they contain no reported blockers.
+
+Another option for running Electron apps on Windows for `ARM` devices is
+to use the ia32 emulator that comes with Windows for ARM.
 
 ### Linux