Update README with the new directory layout
diff --git a/README.md b/README.md
index 6a4b1f2..decdfe5 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,14 @@
 Firmware files for ath10k, a mac80211 driver for QCA988x. The
 directory structure is:
 
- * ath10k: the default firmware files, supports all modes
- * ap: firmware images from the AP branch (STA specific features
-   might not work)
+ * ath10k: the default firmware files, copy this directory structure
+   to your firmware file location, most likely /lib/firmware/
+
+ * 10.1: firmware images from the 10.1 firmware branch, primary use
+   case AP mode, STA specific features might not work
+
+ * main: firmware images from the "main" firmware branch, primary use
+   case STA mode
 
 For more information check the wiki: