Fix typo + do not include themes section in search index

docs/content/themes/_index.md

@@ -2,5 +2,6 @@
 +++
 template = "themes.html"
 sort_by = "date"
+in_search_index = false
 +++        
         

docs/templates/index.html

@@ -72,7 +72,7 @@
                             <h2>Easy to use</h2>
                             <p>
                                 From the CLI to the template engine, everything is designed to be intuitive.
-                                Don't take my words for it though, look at the
+                                Don't take my word for it though, look at the
                                 <a href="{{ get_url(path="@/documentation/_index.md") }}">documentation</a> and see for yourself.
                             </p>
                         </div>