fixed bip number

bip-dandelion.mediawiki

@@ -1,5 +1,5 @@
 <pre>
-  BIP: ?
+  BIP: 156
   Layer: Peer Services
   Title: Dandelion - Privacy Enhancing Routing
   Author: Brad Denby <bdenby@cmu.edu>
@@ -8,11 +8,11 @@
           Surya Bakshi <sbakshi3@illinois.edu>
           Shaileshh Bojja Venkatakrishnan <shaileshh.bv@gmail.com>
           Pramod Viswanath <pramodv@illinois.edu>
-  Comments-URI: https://github.com/mablem8/bips/wiki/Comments:BIP-Dandelion
+  Comments-URI: https://github.com/bitcoin/bips/wiki/Comments:BIP-0156
   Status: Draft
   Type: Standards Track
   Created: 2017-06-09
-  License: Creative Commons CC0 1.0 Universal
+  License: CC0-1.0
 </pre>
 
 ==Abstract==