README: extract CONTRIBUTING, clean up

CONTRIBUTING.org

@@ -0,0 +1,6 @@
+Profiles should favor usability and stability, so performance hacks should be
+activated by an additional NixOS option or conservative and performance configs
+can be declared in separate profiles.
+
+Because profiles can only be tested with the appropriate hardware, quality
+assurance is up to *you*.

README.org

@@ -1,13 +1,21 @@
 NixOS profiles covering hardware quirks.
 
-Add a new channel:
+** Setup
+
+Add and update ~nixos-hardware~ channel:
 
   : $ sudo nix-channel --add https://github.com/NixOS/nixos-hardware/archive/master.tar.gz nixos-hardware
   : $ sudo nix-channel --update nixos-hardware
 
-Then add an appropriate profile path to ~imports~ in
+Then import an appropriate profile path from the table below. For example, to
-~/etc/nixos/configuration.nix~. Currently available profiles:
+enable ThinkPad X220 profile, your ~imports~ in ~/etc/nixos/configuration.nix~
+should look like:
 
+  : imports = [ <nixos-hardware/lenovo/thinkpad/x220> ./hardware-configuration.nix ];
+
+** Profiles
+
+|---------------------------+--------------------------------------------|
 | Model                     | Path                                       |
 |---------------------------+--------------------------------------------|
 | Acer Aspire 4810T         | ~<nixos-hardware/acer/aspire/4810t>~       |
@@ -15,6 +23,7 @@ Then add an appropriate profile path to ~imports~ in
 | Apple MacBook Pro 10,1    | ~<nixos-hardware/apple/macbook-pro/10-1>~  |
 | Apple MacBook Pro 12,1    | ~<nixos-hardware/apple/macbook-pro/12-1>~  |
 | Dell XPS 15 9550          | ~<nixos-hardware/dell/xps/15-9550>~        |
+| Inverse Path USB armory   | ~<nixos-hardware/inversepath/usbarmory>~   |
 | Lenovo IdeaPad Z510       | ~<nixos-hardware/lenovo/ideapad/z510>~     |
 | Lenovo ThinkPad T410      | ~<nixos-hardware/lenovo/thinkpad/t410>~    |
 | Lenovo ThinkPad T440p     | ~<nixos-hardware/lenovo/thinkpad/t440p>~   |
@@ -26,20 +35,4 @@ Then add an appropriate profile path to ~imports~ in
 | Samsung Series 9 NP900X3C | ~<nixos-hardware/samsung/np900x3c>~        |
 | Supermicro A1SRi-2758F    | ~<nixos-hardware/supermicro/a1sri-2758f>~  |
 | Supermicro X10SLL-F       | ~<nixos-hardware/supermicro/x10sll-f>~     |
-
+|---------------------------+--------------------------------------------|
-For example, to enable ThinkPad X220 profile, your ~imports~ should look like:
-
-  : imports = [ <nixos-hardware/lenovo/thinkpad/x220> ./hardware-configuration.nix ];
-
-Profiles should favor usability and stability, so performance hacks should be
-activated by an additional NixOS option or conservative and performance configs
-can be declared in separate profiles.
-
-Because profiles can only be tested with the appropriate hardware, quality
-assurance is up to *you*.
-
-** Simple tips and tricks
-
-*** Disable PC speaker
-
-  : boot.blacklistedKernelModules = [ "pcspkr" ];