fixed a typo in the README file

Author: andyglick

README.md

@@ -1,7 +1,7 @@
 Berkeley DB Java Edition
 ========================
 
-managed to stumble upon release 18.3.12 of the projects source code in
+managed to stumble upon release 18.3.12 of the project's source code in
 an artifact located at Maven Central -- am simply attempting to make it
 available to anyone who might want to work with it