Update bip-0013.mediawiki

Author: vincenzopalazzo

bip-0013.mediawiki

@@ -50,7 +50,7 @@ This proposal is not backwards compatible, but it fails gracefully-- if an older
 
 ==Reference Implementation==
 
-See base58.cpp1/base58.h at https://github.com/bitcoin/bitcoin/tree/master/src
+See base58.cpp/base58.h at https://github.com/bitcoin/bitcoin/tree/master/src
 
 ==See Also==