Update SPEC1.1.md & => ? (#218)

Author: mahnunchik

SPEC1.1.md

@@ -100,7 +100,7 @@ solana:mvines9iiHiQTysrwkJjGf2gb9Ex9jXJX8ns3qwf2kN?amount=0.01&spl-token=EPjFWdd
 
 ##### URL describing a transfer request for SOL. The user must be prompted for the amount.
 ```
-solana:mvines9iiHiQTysrwkJjGf2gb9Ex9jXJX8ns3qwf2kN&label=Michael
+solana:mvines9iiHiQTysrwkJjGf2gb9Ex9jXJX8ns3qwf2kN?label=Michael
 ```
 
 ##### URL describing a transfer request for 1 SOL with a redirect