Change wording on help

Author: mutatrum

index.html

@@ -68,7 +68,7 @@
       <a href="https://github.com/mutatrum/hodl.camp" target="_blank"><i class="fa fa-github"></i></a><br>
       <br>
       price data: <a href="https://coinmetrics.io/charts/#assets=btc" target="_blank">coin metrics <i class="fa fa-external-link"></i></a><br>
-      colors: <a href="http://colorbrewer2.org/" target="_blank>">color brewer <i class="fa fa-external-link"></i></a>
+      color maps: <a href="http://colorbrewer2.org/" target="_blank>">color brewer <i class="fa fa-external-link"></i></a>
     </div>
  </div>
 </body>