Add README file

README

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+Tool: "autorandr"
+
+Automatically select a display configuration based on connected devices
+
+Stefan Tomanek <stefan.tomanek@wertarbyte.de>
+
+How to use:
+
+Save your current display configuration and setup with:
+ $ autorandr --save mobile
+
+Connect an additional display, configure your setup and save it:
+ $ autorandr --save docked
+
+Now autorandr can detect which hardware setup is active:
+ $ autorandr
+   mobile
+   docked (detected)
+
+To automatically reload your setup, just append --change to the command line
+
+To manually load a profile, you can use the --load <profile> option.
+
+autorandr tries to avoid reloading an identical configuration. To force the
+(re)configuration, apply --force.
+
+To prevent a profile from being loaded, place a script call "block" in its
+directory. The script is evaluated before the screen setup is inspected, and
+in case of it returning a value of 0 the profile is skipped. This can be used
+to query the status of a docking station you are about to leave.
+
+If no suitable profile can be identified, the current configuration is kept.
+To change this behaviour and switch to a fallback configuration, specify
+--default <profile>
+
+Another script called "postswitch "can be placed in the directory
+~/.autorandr as well as in all profile directories: The scripts are executed
+after a mode switch has taken place and can notify window managers or other
+applications about it.
+
+
+While the script uses xrandr by default, calling it by the name "autodisper"
+or "auto-disper" forces it to use the "disper" utility, which is useful for
+controlling nvidia chipsets. The formats for fingerprinting the current setup
+and saving/loading the current configuration are adjusted accordingly.
+