README: Add Lenovo ThinkPad x260

README.md

@@ -40,6 +40,7 @@ imports = [
 | Lenovo ThinkPad X220              | `<nixos-hardware/lenovo/thinkpad/x220>`      |
 | Lenovo ThinkPad X230              | `<nixos-hardware/lenovo/thinkpad/x230>`      |
 | Lenovo ThinkPad X250              | `<nixos-hardware/lenovo/thinkpad/x250>`      |
+| [Lenovo ThinkPad X260][]          | `<nixos-hardware/lenovo/thinkpad/x260>`    |
 | Lenovo ThinkPad X270              | `<nixos-hardware/lenovo/thinkpad/x270>`      |
 | [Lenovo ThinkPad X1 (6th Gen)][]  | `<nixos-hardware/lenovo/thinkpad/x1/6th-gen>`|
 | [Microsoft Surface Pro 3][]       | `<nixos-hardware/microsoft/surface-pro/3>`   |
@@ -56,6 +57,7 @@ imports = [
 [Dell XPS 15 9550]: dell/xps/15-9550
 [Inverse Path USB armory]: inversepath/usbarmory
 [Lenovo ThinkPad X1 (6th Gen)]: lenovo/thinkpad/x1/6th-gen
+[Lenovo ThinkPad X260]: lenovo/thinkpad/x260
 [Microsoft Surface Pro 3]: microsoft/surface-pro/3
 [Raspberry Pi 2]: raspberry-pi/2
 [Samsung Series 9 NP900X3C]: samsung/np900x3c