Update app.py

app.py

@@ -8,7 +8,7 @@ generator = Text2Image(
     jit_compile=False,
 )
 
-def txt2img(prompt, guide, steps, temp)
+def txt2img(prompt, guide, steps, temp):
     img = generator.generate(prompt,
     num_steps=150,
     unconditional_guidance_scale=15,