Added more to README.md and symlinked to README

Just more documentation on how this currently works.

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-keymanage
-=========
+## keymanage
 
-Manages ssh keys programatically to allow for seamless key swapping/refresh on a specified list of systems.
+Provides functionality to push, remove, and swap/refresh ssh keys on a list of systems for the current or specified user.
+
+### Actions
+*All actions are performed on the systems listed in the specified manifest file.*
+
+1. **push**: Pushes the specified key to the current or specified user on remote systems
+2. **remove**: Removes the specified key from the current or specified users on remote systems
+3. **update**: Performs a *push - remove* operation. First pushes the new key, using the old key so a password is not required. Then uses the newly pushed key to remove the old key.
+
+### Arguments
+- **-m,--manifest**: Specify a list of systems to perform the action on
+- **-k,--key**: Path to the key to perform the action (push, remove) with
+- **-i,--id**: Key to use for automated logins. Not used when performing an update.
+- **-u,--user**: Username on remote systems to work on (defaults to current user)