doc: typo fix

Author: nemonik

README.MD

@@ -23,11 +23,10 @@ Releases of java-stix will comply with the Semantic Versioning specification at
 [http://semver.org/][semver]. Java-stix is currently under active development; 
 see TODO.txt for a tentative roadmap.  Releases will be announced on the [STIX 
 discussion list][list]. A java-stix for a particular schema release will match the 
-STIX schema version in Semantic Versioning form. Follow up patched releases of 
-java-stix for a particular schema release will add, and follow on patches will
-increment a 4th digit. For example, the first patch release for java-stix `v1.2.0` 
-would be `v1.2.0.1`. Patches will be worked in a branch prior to being tagged and
-released.
+STIX schema version in Semantic Versioning form. Follow up patches of java-stix 
+for a particular schema release will increment a 4th digit. For example, the first 
+patch release for java-stix `v1.2.0` would be `v1.2.0.1`. Patches will be worked 
+in a branch prior to being tagged and released.
 
 ## <a name="releases"></a>Releases