framework: Clarify 13th Gen Intel Core support

Signed-off-by: Daniel Schaefer <dhs@frame.work>

framework/13th-gen-intel/README.md

@@ -0,0 +1,15 @@
+# [Framework Laptop 13](https://frame.work/)
+
+## Updating Firmware
+
+First put enable `fwupd`
+
+```nix
+services.fwupd.enable = true;
+```
+
+Then run
+
+```sh
+ $ sudo fwupdmgr update
+```

framework/13th-gen-intel/default.nix

@@ -0,0 +1,7 @@
+{ lib, pkgs, ... }: {
+  imports = [
+    # Same config as 12th Gen. The chipsets and mainboard are similar enough
+    # that no separate configuration is needed.
+    ../12th-gen-intel
+  ];
+}