Add trademark notices on the About page

assets/javascripts/templates/pages/about_tmpl.coffee

@@ -130,7 +130,7 @@ credits = [
     'https://raw.github.com/lodash/lodash/master/LICENSE.txt'
   ], [
     'Node.js',
-    'Joyent, Inc. and other Node contributors',
+    'Joyent, Inc. and other Node contributors<br>Node.js is a trademark of Joyent, Inc.',
     'MIT',
     'https://raw.github.com/joyent/node/master/LICENSE'
   ], [
@@ -145,7 +145,7 @@ credits = [
     'https://www.ruby-lang.org/en/about/license.txt'
   ], [
     'Ruby on Rails',
-    '2004-2013 David Heinemeier Hansson',
+    '2004-2013 David Heinemeier Hansson<br>Rails, Ruby on Rails, and the Rails logo are trademarks of David Heinemeier Hansson.',
     'MIT',
     'https://raw.github.com/rails/rails/master/activerecord/MIT-LICENSE'
   ], [