README: fix typo

Author: alb-i986

README.md

@@ -10,7 +10,7 @@ The Jenkins API Client For Java has now moved under the umbrella of the Jenkins
 
 ## What is the "Jenkins API Client for Java"?
 
-This library is a just a piece of java code which uses the REST API of jenkins.
+This library is just a piece of java code which uses the REST API of jenkins.
 This means you can trigger builds, extract informations about jobs or builds
 etc. The information you can extract will be represented in java objects which
 you can reuse for other purposes or integrate this library into other parts for