Change container name in b2 docs (#5259)

docs/gateway/b2.md

@@ -6,7 +6,7 @@ Please follow this [guide](https://www.backblaze.com/b2/docs/quick_account.html)
 
 ### Using Docker
 ```
-docker run -p 9000:9000 --name azure-s3 \
+docker run -p 9000:9000 --name b2-s3 \
  -e "MINIO_ACCESS_KEY=b2_accound_id" \
  -e "MINIO_SECRET_KEY=b2_application_key" \
  minio/minio:edge gateway b2
@@ -48,4 +48,4 @@ Other limitations:
 ## Explore Further
 - [`mc` command-line interface](https://docs.minio.io/docs/minio-client-quickstart-guide)
 - [`aws` command-line interface](https://docs.minio.io/docs/aws-cli-with-minio)
-- [`minio-go` Go SDK](https://docs.minio.io/docs/golang-client-quickstart-guide)
+- [`minio-go` Go SDK](https://docs.minio.io/docs/golang-client-quickstart-guide)