diff --git a/k1-spl-dram.md b/k1-spl-dram.md
index 82dac14..5566dae 100644
--- a/k1-spl-dram.md
+++ b/k1-spl-dram.md
@@ -1,6 +1,6 @@
 ## Vendor docs
 
-https://docs.banana-pi.org/en/BPI-F3/BananaPi_BPI-F3
+https://docs.banana-pi.org/en/BPI-F3/BananaPi_BPI-F3 
 
 https://docs.banana-pi.org/en/BPI-F3/GettingStarted_BPI-F3
 
@@ -281,4 +281,7 @@ handle setup GET_DESCRIPTOR, 0x80, 0x6 index 0x0 value 0x300 length 0x4
 handle setup GET_DESCRIPTOR, 0x80, 0x6 index 0x409 value 0x303 length 0xff
 ```
 
-Now press Ctrl + C to drop into the U-Boot shell. Enjoy! :-)
\ No newline at end of file
+Now press Ctrl + C to drop into the U-Boot shell. Enjoy! :-)
+
+---
+[source link](https://gist.github.com/orangecms/8624aa82bab4931f787b5eee572f7668)
\ No newline at end of file