README Updates

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

.config/dwm

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-Subproject commit 4460e3cc91e2d34d15f1787de84f4d804b6e8f3b
+Subproject commit 586dfc1ddf00729eb6bb0acfe2cec1516587f9ba

.config/slock

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-Subproject commit 76df5beac41980d58811f844249e2af6f577114f
+Subproject commit 44a8517dd5567cf6ab1966e6c6f7915cdb50d62f

.config/slstatus

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-Subproject commit a250d90ce69db506824114408938dd91ffe21dd4
+Subproject commit 91c8d8a382ff9216a21af696bdf08bfd05905157

README.md

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 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).