add report and disclaimer to readme (#46)

README.md

@@ -20,6 +20,10 @@ The Wide-Area Decontamination Tool (WADT) estimates the cost and time associated
 
 Each release's assets will contain an executable that can be downloaded and run. [Click here](https://github.com/USEPA/EPADecon/releases/latest) to access the latest release. Please note that the software dependenices listed above will need to be installed for the application to work.
 
+## More Information
+
+A report containing more information on the methodology used by this tool can be found [here](https://cfpub.epa.gov/si/si_public_record_report.cfm?Lab=CESER&dirEntryId=356515).
+
 # Contribute
 
 Follow the standards set forth by the group for all .NET development.
@@ -226,3 +230,6 @@ let providedNumber = numberProvider.get();
 
 ... // other code
 ```
+
+# Disclaimer
+The United States Environmental Protection Agency (EPA) GitHub project code is provided on an "as is" basis and the user assumes responsibility for its use. EPA has relinquished control of the information and no longer has responsibility to protect the integrity , confidentiality, or availability of the information. Any reference to specific commercial products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply their endorsement, recommendation or favoring by EPA. The EPA seal and logo shall not be used in any manner to imply endorsement of any commercial product or activity by EPA or the United States Government.