Remove guess_lang: false

Adding the following to `mkdocs.yaml`:

~~~yaml
markdown_extensions:
-- codehilite:
     guess_lang: false
~~~

did not behave as expected. This reverses that.

Author: mpilgrem

mkdocs.yml

@@ -50,7 +50,5 @@ pages:
 - Glossary: glossary.md
 
 markdown_extensions:
-- codehilite:
-    guess_lang: false
 - toc:
     permalink: true