Update README.md

Fix typo

README.md

@@ -1,7 +1,7 @@
 # CHESS Statistical Trace Analyzer
 ### it.unifi.rcl.chess.traceanalysis
 
-This sowftware is part of the **CHESS Framework**, and it has been developed within the **CONCERTO Project**.  
+This software is part of the **CHESS Framework**, and it has been developed within the **CONCERTO Project**.  
 More information about CHESS and CONCERTO can be found at the following websites:  
 
 * http://chess-project.org/  
@@ -50,4 +50,4 @@ Parameters:
      This library is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
-     version 2.1 of the License, or (at your option) any later version.  
+     version 2.1 of the License, or (at your option) any later version.