Merge pull request #3077 from brucesw/readme_powered_by_link

MINOR: Fix powered by readme link
diff --git a/README.markdown b/README.markdown
index 9f9522d..1b0c6e2 100644
--- a/README.markdown
+++ b/README.markdown
@@ -2,7 +2,7 @@
 [![Travis CI](https://travis-ci.org/apache/storm.svg?branch=master)](https://travis-ci.org/apache/storm)
 [![Maven Version](https://maven-badges.herokuapp.com/maven-central/org.apache.storm/storm-core/badge.svg)](http://search.maven.org/#search|gav|1|g:"org.apache.storm"%20AND%20a:"storm-core")
  
-Storm is a distributed realtime computation system. Similar to how Hadoop provides a set of general primitives for doing batch processing, Storm provides a set of general primitives for doing realtime computation. Storm is simple, can be used with any programming language, [is used by many companies](http://storm.apache.org/documentation/Powered-By.html), and is a lot of fun to use!
+Storm is a distributed realtime computation system. Similar to how Hadoop provides a set of general primitives for doing batch processing, Storm provides a set of general primitives for doing realtime computation. Storm is simple, can be used with any programming language, [is used by many companies](http://storm.apache.org/Powered-By.html), and is a lot of fun to use!
 
 The [Rationale page](http://storm.apache.org/documentation/Rationale.html) explains what Storm is and why it was built. [This presentation](http://vimeo.com/40972420) is also a good introduction to the project.