diff --git a/docs/examples/index.md b/docs/examples/index.md
index cd60a78..7b9cf5f 100644
--- a/docs/examples/index.md
+++ b/docs/examples/index.md
@@ -233,4 +233,34 @@ Lorem ipsum[^1] dolor sit amet, consectetur adipiscing elit.[^2]
 [^2]:
     Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla et euismod
     nulla. Curabitur feugiat, tortor non consequat finibus, justo purus auctor
-    massa, nec semper lorem quam in massa.
\ No newline at end of file
+    massa, nec semper lorem quam in massa.
+
+## Formatting
+
+### Highlighting changes
+
+Text can be {--deleted--} and replacement text {++added++}. This can also be
+combined into {~~one~>a single~~} operation. {==Highlighting==} is also
+possible {>>and comments can be added inline<<}.
+
+{==
+
+Formatting can also be applied to blocks by putting the opening and closing
+tags on separate lines and adding new lines between the tags and the content.
+
+==}
+
+### Highlighting text
+
+- ==This was marked (highlight)==
+- ^^This was inserted (underline)^^
+- ~~This was deleted (strikethrough)~~
+
+### Sub- and superscripts
+
+- H~2~O
+- A^T^A
+
+### Adding keyboard keys
+
+++ctrl+alt+del++
\ No newline at end of file
diff --git a/mkdocs.yml b/mkdocs.yml
index e0e24e4..bcdd28f 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -24,7 +24,6 @@ theme:
     - content.code.copy
     - content.code.annotate
     - content.tabs.link
-    - content.footnote.tooltips
   palette:
     primary: blue grey
     accent: light blue
@@ -41,6 +40,7 @@ markdown_extensions:
   - toc:
       permalink: true
   # Python Markdown Extensions
+  - pymdownx.critic
   - pymdownx.arithmatex:
       generic: true
   - pymdownx.betterem: