README: add links for culfw and devices

diff --git a/README.md b/README.md
index fd6cc03fe06a3a6bc4f4b78d39effbe06633aaf0..b0ae978ce6489fdde322861338c3ea4b34f8a374 100644 (file)
--- a/README.md
+++ b/README.md
@@ -67,8 +67,11 @@ AES-signing like [KeyMatic][].
 *   When using the **HM-CFG-USB**, flash the new firmware to the device with
     serial *KEQ0123456*:  
      `./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456`
-*   When using a **culfw**-based device (**CUL/COC/...**), flash the new
-    firmware to the device with serial *KEQ0123456*:  
+*   When using a **[culfw][]**-based device (**[CUL][]/[COC][]/...**), flash
+    the new firmware to the device with serial *KEQ0123456*:  
      `./flash-ota -f hm_cc_rt_dn_update_V1_4_001_141020.eq3 -s KEQ0123456 -c /dev/ttyACM0`
 
 [eQ-3]: http://www.eq-3.de/downloads.html
+[culfw]: http://culfw.de/culfw.html
+[CUL]: http://busware.de/tiki-index.php?page=CUL
+[COC]: http://busware.de/tiki-index.php?page=COC