Update phrase_mappings.json

phrase_mappings.json

@@ -13,6 +13,9 @@
     "Hujambo {name}": "How are you {name}?",
     "sijambo": "I'm fine (Formal)",
     "u hali gani": "How are you doing?",
+    "U hali gani": "How are you doing?",
+    "u hali gani?": "How are you doing?",
+    "U hali gani?": "How are you doing?",
     "mambo": "How's it going?",
     "poa": "Fine",
     "salama": "I'm fine"