[gjs: 2/3] docs: advertise the multiarch builds

[Philip Chimento <pchimento src gnome org>]

commit 2b6b2af5a6f7f58113969eb6de49ae0fa86ca70a
Author: Claudio André <claudioandre br gmail com>
Date:   Tue Jun 12 12:56:23 2018 -0300

    docs: advertise the multiarch builds
    
    [skip ci]

 README.md | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/README.md b/README.md
index d3fc0ca2..0bd01e0d 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,7 @@ Our CI (continuous integration) testing scheme stresses the source code using:
 - Code Coverage (https://en.wikipedia.org/wiki/Code_coverage);
 - Text only and graphics builds;
 - Profiler enabled and disabled builds;
+- ARMv8 and PPC64LE builds;
 - And DevOps with Flatpak.
 
 ## License