Remove Wikipedia refs (#2)

- Remove wikipedia refs in text like [1] and [a] (3e2dbcd8d36890ffc10d1da9b7687a757627c304)


Co-authored-by: Sean Owen <[email protected]>

databricks-dolly-15k.jsonl

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:e442d96b320010510c67a6cc0a86ea988a2a6f71c7570d1afbdf4fa631896e58
-size 13216570
+oid sha256:8419d2c537511d5dd7565ecbb1890bc9e5aeafc6c34aebc9d208447045a168e4
+size 13160427