[release-notes/gnome-3-20] Fix typo 'availalbe'

[Rafael Fontenelle <rafaelff src gnome org>]

commit 398b4238a13f13e523f59c402aea5c1af12c9540
Author: Rafael Fontenelle <rffontenelle gmail com>
Date:   Tue Mar 15 13:19:47 2016 -0300

    Fix typo 'availalbe'

 help/C/developers.page |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/help/C/developers.page b/help/C/developers.page
index 9e99110..a50e13a 100644
--- a/help/C/developers.page
+++ b/help/C/developers.page
@@ -126,7 +126,7 @@
       applications can depend, have been updated and improved, and are now
       easier to contribute to. They now include an unstable runtime, which can
       be used to install nightly applications or for application development.
-      For details about all the runtimes that are availalbe, see the
+      For details about all the runtimes that are available, see the
       <link href="https://wiki.gnome.org/Projects/SandboxedApps/Runtimes";>
       runtimes wiki page</link>.</p></item>
     </list>