Stop advertising FreeBSD compatibility

app/views/home/show.html.slim

@@ -13,7 +13,7 @@
           p
             = link_to 'Start Recording', docs_path('getting-started'), class: 'btn btn-success'
           p
-            ' Supports Linux, Mac OS X and FreeBSD
+            ' Supports Linux and Mac OS X
 
         .col-md-7
           .player-wrapper

app/views/pages/contributing.html.slim

@@ -87,10 +87,9 @@
     h2 id="packaging" Packaging
 
     p
-      ' Currently Asciinema recorder can be installed on any Linux, OS X and
-        FreeBSD system with <code>pip</code> (because it's a Python package at
-        its core).  There are also native packages for Ubuntu and Arch Linux at
-        the moment.
+      ' Currently Asciinema recorder can be installed on any Linux and OS X
+        system with <code>pip</code> (it's a Python package at its core).
+        There are also native packages for Ubuntu and Arch Linux at the moment.
 
     p
       ' If you use an operating system for which there's no native asciinema