Add instructions for checking successfull install

Author: bobleesj

README.rst

@@ -89,6 +89,12 @@ and run the following ::
 
         pip install .
 
+To confirm that the installation was successful, type ::
+                
+        python -c "import diffpy.snmf; print(diffpy.snmf.__version__)"
+
+The output should print the latest version displayed on the badges above.
+
 Support and Contribute
 ----------------------
 

news/update-install-check.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* <news item>
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* Updated REAMDE instructions to check for successful installation
+
+**Security:**
+
+* <news item>