Add additional files to test collisions in dry-runs/

+ Update README to show use of nested dotfiles repositories

README.md

@@ -24,3 +24,25 @@ OPTIONS:
 ARGS:
     <config>    Local or full path to user configurations to install
 ```
+
+To store dotfiles, this repository uses submodules. To update surface-level submodules, we can run the following commands
+```bash
+git submodule init
+git submodule update
+Submodule path 'dot': checked out '7877117d5bd413ecf35c86efb4514742d8136843'
+```
+
+But in the case of my dotfiles repository, [shaunrd0/dot](https://gitlab.com/shaunrd0/dot), I use submodules to clone repositories for vim plugins. To update all submodules *and their nested submodules*, we can run the following commands
+```bash
+git submodule init
+git submodule update --recursive
+Submodule path 'dot': checked out '7877117d5bd413ecf35c86efb4514742d8136843'
+Submodule path 'dot/.vim/bundle/Colorizer': checked out '826d5691ac7d36589591314621047b1b9d89ed34'
+Submodule path 'dot/.vim/bundle/ale': checked out '3ea887d2f4d43dd55d81213517344226f6399ed6'
+Submodule path 'dot/.vim/bundle/clang_complete': checked out '293a1062274a06be61797612034bd8d87851406e'
+Submodule path 'dot/.vim/bundle/supertab': checked out 'd80e8e2c1fa08607fa34c0ca5f1b66d8a906c5ef'
+Submodule path 'dot/.vim/bundle/unicode.vim': checked out 'afb8db4f81580771c39967e89bc5772e72b9018e'
+Submodule path 'dot/.vim/bundle/vim-airline': checked out 'cb1bc19064d3762e4e08103afb37a246b797d902'
+Submodule path 'dot/.vim/bundle/vim-airline-themes': checked out 'd148d42d9caf331ff08b6cae683d5b210003cde7'
+Submodule path 'dot/.vim/bundle/vim-signify': checked out 'b2a0450e23c63b75bbeabf4f0c28f9b4b2480689'
+```

backups/kapper

@@ -1 +0,0 @@
-Subproject commit 7877117d5bd413ecf35c86efb4514742d8136843

backups/kapper/README.md

@@ -0,0 +1 @@
+This directory is for testing the backup process of user configurations that conflict with configurations we're attempting to install.

dry-runs/kapper

@@ -1 +0,0 @@
-Subproject commit 7877117d5bd413ecf35c86efb4514742d8136843

dry-runs/kapper/.config/README.md

@@ -0,0 +1,2 @@
+This is a test directory to test config collisions
+

dry-runs/kapper/README.md

@@ -0,0 +1 @@
+This directory is for testing the installation of user configurations against an existing configuration set.