get rid of beginners mistake: credentials in external file

no_credentials.json

@@ -0,0 +1,4 @@
+{
+    "user": "",
+    "password": ""
+}

wiki_relations.py

@@ -19,9 +19,6 @@ default_categories = [
     'Country',
     ]
 
-username = "Ruben2@SemanticGraphFetcher"
-password = "bdqjse4jodn34rbj73l0agrtb306v693"
-
 parser = argparse.ArgumentParser(description='Turn wiki into nodes & links, usable by d3-force.')
 parser.add_argument('--categories', metavar='categories', default=default_categories, nargs='+',
                     help='Categories')
@@ -29,9 +26,16 @@ parser.add_argument('--url',  default="https://www.securityvision.io/wiki/api.ph
                     help='Wiki API URL')
 parser.add_argument('--output',  default="semantic_data.json",
                     help='Output JSON file')
+parser.add_argument('--credentials',  default="no_credentials.json",
+                    help="JSON file containing the Bot's credentials")
 
 args = parser.parse_args()
 
+with open(args.credentials) as fp:
+    credentials = json.load(fp)
+    username = credentials['user']
+    password = credentials['password']
+
 
 def get_session():
     S = requests.Session()