add: contributors to readme

README.md

@@ -17,7 +17,9 @@ This software was developed at NTNU as part of a Bachelor thesis for the municip
   * [Known bugs](#known-bugs)
 * [Application](#application)
   * [Application dependencies](#application-dependencies)
-* [Developers](#devleopers)
+* [Contributors](#contributors)
+  * [Developers](#developers)
+  * [Third party software](#third-party-software)
 
 # IceMap software license
 The IceMap software was produced by Joakim Aleksandersen, 
@@ -219,6 +221,10 @@ pubspec.yaml file, each with a comment explaining the dependencies usage.
 To install all the dependencies, simply run ```flutter pub get``` inside the app directory.
 
 
-# Developers
+# Contributors
+## Developers
 This software was developed by Joakim Aleksandersen, Sara Savanovic Djordjevic, 
-and Hoa Ben The Nguyen.
\ No newline at end of file
+and Hoa Ben The Nguyen.
+
+## Third-Party Software
+ModelFromNVE is a third party software provided by the Norwegian Energy Regulatory Authority.
\ No newline at end of file