Update tmux.md

Author: nicholaswilde

docs/tmux.md

@@ -16,19 +16,20 @@
     set -g allow-passthrough on
     ```
 
-## TPM
+## [TPM][2]
 
-Install tpm.
+!!! quote "Install tpm"
 
-```
-mkdir -p ~/.tmux/plugins
-git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
-Ctrl + b
-Shift + I
-```
+    ```
+    mkdir -p ~/.tmux/plugins
+    git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
+    # Ctrl + b
+    # Shift + I
+    ```
 
 ## :link: References
 
 - <https://tmuxcheatsheet.com/>
 
 [1]: <https://groups.google.com/a/chromium.org/g/chromium-hterm/c/davGyRBr3l8/m/7BPjaTwQAAAJ>
+[2]: <https://github.com/tmux-plugins/tpm>