make credits optional

README.md

@@ -54,6 +54,14 @@ Be sure to start your `url`s with a `/`.
 
 A sparsely decorated layout designed to present long-form writing in a manner that's pleasing to read.
 
+### Credits
+
+The theme credits that appear at the bottom of each page can be turned off by including the following line in your site's `_config.yml` file:
+
+```
+hide_credits: true
+```
+
 ## Contributing
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/patdryburgh/hitchens. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.

_config.yml

@@ -24,6 +24,7 @@ github_username:  patdryburgh
 
 # Build settings
 markdown: kramdown
+hide_credits: true
 
 # Exclude from processing.
 # The following items will not be processed, by default. Create a custom list

_layouts/default.html

@@ -19,7 +19,7 @@
 
     {{ content }}
 
-    {% unless site.show_credits == "false" %}
+    {% unless site.hide_credits %}
       <aside class="site-credits">
         <p>
           <small><a href="https://github.com/patdryburgh/hitchens">Hitchens Theme</a> powered by <a href="http://jekyllrb.com">Jekyll</a></small>