Update app.py

app.py

@@ -12,7 +12,7 @@ def savefile(newuser):
     with open("data.json", "w") as f:
         json.dump(data, f, indent=4)
 
-def signup():
+def Signup():
     username = st.text_input("Username")
     password = st.text_input("Password", type="password")
     confpass = st.text_input("Confirm Password", type="password")