Update Gemfile source to https
diff --git a/site/Gemfile b/site/Gemfile
index 01cb75f..469a8e7 100644
--- a/site/Gemfile
+++ b/site/Gemfile
@@ -15,7 +15,7 @@
# specific language governing permissions and limitations
# under the License.
-source 'http://rubygems.org'
+source 'https://rubygems.org'
gem "middleman"
diff --git a/site/Gemfile.lock b/site/Gemfile.lock
index aa559ce..d86cda3 100644
--- a/site/Gemfile.lock
+++ b/site/Gemfile.lock
@@ -1,5 +1,5 @@
GEM
- remote: http://rubygems.org/
+ remote: https://rubygems.org/
specs:
activesupport (4.2.4)
i18n (~> 0.7)