Fixed typo.

README.md

@@ -194,7 +194,7 @@ Conversion rates are 1mo = 4w, 1w = 5d and 1d = 8h.
 
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 ## Making API Calls
-The API has been broken up into sub APIs classes to make it easier to learn and to separate concerns.  Following is a list of the sub APIs along with a sample use of each API.  See the <a href="http://www.messners.com/gitlab4j-api/javadocs/index.html?org/gitlab4j/api/package-summary.html" target="_top">Javadocs</a> for a complete list of available methods for each sub API.
+The API has been broken up into sub API classes to make it easier to learn and to separate concerns.  Following is a list of the sub APIs along with a sample use of each API.  See the <a href="http://www.messners.com/gitlab4j-api/javadocs/index.html?org/gitlab4j/api/package-summary.html" target="_top">Javadocs</a> for a complete list of available methods for each sub API.
 
 ### Available Sub APIs
 ------------------