docs: fix contribution guide links [skip ci]

docs/code_contribution_guidelines.md

@@ -86,7 +86,7 @@ security and performance implications.
     - The original LN was written for a rather narrow audience, the paper may be a bit unapproachable to many. Thanks to the Bitcoin community, there exist many easily accessible supplemental resources which can help one see how all the pieces fit together from double-spend protection all the way up to commitment state transitions and Hash Time Locked Contracts (HTLCs): 
         - [Lightning Network Summary](https://lightning.network/lightning-network-summary.pdf)
         - [Understanding the Lightning Network 3-Part series](https://bitcoinmagazine.com/articles/understanding-the-lightning-network-part-building-a-bidirectional-payment-channel-1464710791) 
-        - [Deployable Lightning](https://github.com/ElementsProject/lightning/blob/master/doc/deployable-lightning.pdf) 
+        - [Deployable Lightning](https://github.com/ElementsProject/lightning/blob/master/doc/miscellaneous/deployable-lightning.pdf)
 
 
 Note that the core design of the Lightning Network has shifted over time as