diff --git a/gum/README.md b/gum/README.md
index 75091c02..f52a822f 100644
--- a/gum/README.md
+++ b/gum/README.md
@@ -44,16 +44,33 @@ To use Disqus, add the Disqus site name via the following variable.
DISQUS_SITENAME = ''
```
-
To add content or markup to the footer of every page: Add an `extra_footer.html` file to
a directory in your `THEME_TEMPLATES_OVERRIDES` path. It is empty by default.
+To add extra CSS, for example to override styles without forking the Gum theme,
+>>>>>>> 2707d51 (Documentation tweaks from review feedback)
+you may specify either or both of these settings:
+
+```
+CUSTOM_CSS_FILES = ['list of paths to additional css static files']
+CUSTOM_CSS_URLS = ['list of URLs of additional remote css to load']
+```
+
+To add extra Javascript to the theme, you may specify either or both of these settings:
+
+```
+CUSTOM_JS_FILES = ['list of paths to additional JavaScript static files']
+CUSTOM_JS_URLS = ['list of URLs of additional JavaScript to load']
+
+```
+
Other features include:
```
SITESUBTITLE = 'your site subtitle'
```
+
The following standard Pelican settings are honored:
```
diff --git a/gum/templates/base.html b/gum/templates/base.html
index bb455491..1e0b7834 100644
--- a/gum/templates/base.html
+++ b/gum/templates/base.html
@@ -37,6 +37,17 @@
+ {% if CUSTOM_CSS_FILES %}
+ {% for item in CUSTOM_CSS_FILES %}
+
+ {% endfor %}
+ {% endif %}
+
+ {% if CUSTOM_CSS_URLS %}
+ {% for item in CUSTOM_CSS_URLS %}
+
+ {% endfor %}
+ {% endif %}
@@ -70,6 +81,17 @@
{% endif %}
+ {% if CUSTOM_JS_FILES %}
+ {% for item in CUSTOM_JS_FILES %}
+
+ {% endfor %}
+ {% endif %}
+ {% if CUSTOM_JS_URLS %}
+ {% for item in CUSTOM_JS_URLS %}
+
+ {% endfor %}
+ {% endif %}
+
{% endblock head %}