Update README.md

README.md

@@ -103,8 +103,9 @@ out center;
 """
 
 dHeaders = {
-    "User-Agent": "FixelCourses-Overpass-Query/1.0 (educational use)",
+    "User-Agent": "OverpassQueryClient/1.0",
     "Accept": "application/json, text/plain;q=0.9, */*;q=0.8",
+    "Content-Type": "text/plain; charset=utf-8",
 }
 
 dData     = None