README Updates

- Update dotfiles README with instructions to install on new system
- Add list of personal modifications to dwm, slock, and slstatus READMEs

README.md

@@ -2,6 +2,35 @@
 
 Personal dotfiles repository
 
+## Install on a new system
+
+See [Acknowledgements](#Acknowledgements) for tutorial source.
+
+* Prior to the installation, create alias for config
+  * `alias config='/usr/bin/git --git-dir=$HOME/.cfg/ --work-tree=$HOME'`
+* Add `.cfg` to `.gitignore`
+  * `echo ".cfg" >> .gitignore`
+* Clone dotfiles into a bare repository
+  * `git clone --bare <git-repo-url> $HOME/.cfg`
+* Define the alias in the current shell scope
+  * `alias config='/usr/bin/git --git-dir=$HOME/.cfg/ --work-tree=$HOME'`
+* Checkout content from bare repository to `$HOME`
+  * `config checkout`
+* Step above might fail with a message like:
+  * ```
+    error: The following untracked working tree files would be overwritten by checkout:
+        .bashrc
+        .gitignore
+    Please move or remove them before you can switch branches.
+    Aborting
+    ```
+* Delete `.bashrc` and `.gitignore`
+  * `rm ~/.bashrc ~/.gitignore`
+* Re-run checkout
+  * `config checkout`
+* Set the flag `showUntrackedFiles` to `no` on this specific (local) repo
+  * `config config --local status.showUntrackedFiles no`
+
 ## Acknowledgements
 
 I followed [DistroTube](https://www.youtube.com/channel/UCVls1GmFKf6WlTraIb_IaJg)'s process for setting up a git bare repository as shown in [Git Bare Repository - A Better Way To Manage Dotfiles](https://youtu.be/tBoLDpTWVOM).