Update taxonomy.json

taxonomy.json

@@ -197,16 +197,17 @@
         "name": "Evaluation Techniques"
     },
     {
-        "name": "Ethics",
-        "children": [
-        {"name": "Biases in NLP",
-         "children": [
+        "name": "Ethics"
+    },
+   
+    
+    {"name": "Biases in NLP",
+    "children": [
           {"name": "Gender Bias"},
           {"name": "Bias Detection"}
          ]
-        }
-      ] 
     },
+
     {
         "name": "Argument Mining"
     },