Added regtests folder.

README.md

-This is the main repository of the [NOMAD](http://nomad-lab.eu) parser for
+This is the main repository of the [NOMAD](https://www.nomad-coe.eu/) parser for
 [CP2K](https://www.cp2k.org/).
 
 # Example

parser/parser-cp2k/cp2kparser/scalainterface.py

@@ -13,5 +13,5 @@ if __name__ == "__main__":
 
     # Initialise the parser with the main filename and a JSON backend
     main_file = sys.argv[1]
-    parser = CP2KParser(main_file, backend=JsonParseEventsWriterBackend)
-    parser.parse()
+    parser = CP2KParser(backend=JsonParseEventsWriterBackend)
+    parser.parse(main_file)