Fix spelling mistake in Gerrit 2.6 new features presentation

Change-Id: I54889c38d2624956cba159f2176a7f7d88c72d2c
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/presentations/gerrit-new-features-2.6/gerrit-new-features-2.6.txt b/presentations/gerrit-new-features-2.6/gerrit-new-features-2.6.txt
index 2426fb8..1b7bdca 100644
--- a/presentations/gerrit-new-features-2.6/gerrit-new-features-2.6.txt
+++ b/presentations/gerrit-new-features-2.6/gerrit-new-features-2.6.txt
@@ -281,7 +281,7 @@
 
 * Fix auto closing of changes on direct push
 
-* Don't show error on ACL modifictaions
+* Don't show error on ACL modifications
 ** if a section is added more than once or
 ** if empty permissions are added