README: add description and a link
diff --git a/README.md b/README.md
index 2839294..6a4b1f2 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,15 @@
 ath10k-firmware
 ===============
 
-Firmware files for ath10k, a mac80211 driver for QCA9880
+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)
+
+For more information check the wiki:
+
+http://wireless.kernel.org/en/users/Drivers/ath10k/firmware
+
+