Update README.md

Author: nmcl

README.md

@@ -7,11 +7,11 @@ JavaSIM has been available since 1997 and is an object-oriented simulation packa
 
 The system also comes with complete examples and test routines which illustrate many of the issues raised in using the simulation package. It is used by many commercial and academic organisations.
 
-Prior to 2007 both C++SIM and JavaSim were freely available in source and binary from Newcastle University, under their own licence. However, in late 2007 the University decided that the code can be released into open source under LGPL.
+Prior to 2007 both C++SIM and JavaSim were freely available in source and binary from Newcastle University, under the University's own licence. However, in late 2007 the University decided that the code could be released into open source under LGPL.
 
 You can find details of the releases in the https://github.com/nmcl/JavaSim/releases section as well as binary downloads.
 
-In 2015 we moved from Codehaus due to that being closed down. All JIRAs from there were also migrated to github issues.
+In 2015 we moved from Codehaus to github. All JIRAs from there were also migrated to github issues.
 
 ----