fix title markdown formatting

Docker Hub does not render the title properly if there is no space between dash and title.
sequenceiq · Jan 10, 2017 · af7d4bf · af7d4bf
1 parent c3d4c70
commit af7d4bf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-#Apache Hadoop 2.7.1 Docker image
+# Apache Hadoop 2.7.1 Docker image
 
 [![DockerPulls](https://img.shields.io/docker/pulls/sequenceiq/hadoop-docker.svg)](https://registry.hub.docker.com/u/sequenceiq/hadoop-docker/)
 [![DockerStars](https://img.shields.io/docker/stars/sequenceiq/hadoop-docker.svg)](https://registry.hub.docker.com/u/sequenceiq/hadoop-docker/)