Minor changes

Author: pawelad

README.md

@@ -14,4 +14,4 @@ Released under [MIT License][license].
 [license]: https://github.com/Pythonity/pythonity-website/blob/master/LICENSE
 [odyniec]: https://github.com/odyniec
 [pawelad]: https://github.com/pawelad
-[pythonity]: http://pythonity.com
+[pythonity]: https://pythonity.com

css/styles.css

@@ -67,7 +67,7 @@ h1 {
     margin-top: 50px;
 }
 
-/* Used at the moment */
+/* Unused at the moment */
 /*.box-icon {
     display: table;
     height: 100px;

index.html

@@ -98,7 +98,7 @@ <h3>
                                 Hire us
                             </a>
                             <a href="mailto:[email protected]?subject=Interesting project">
-                                <span class="fa fa-3x fa-code pull-right"></span>
+                                <span class="fa fa-3x fa-calendar-check-o pull-right"></span>
                             </a>
                         </h3>