feat(README): update short description for clarity

Updated the short description in the README to make it more concise and
clear. Changed from "A Streamlit-based app for generating images from
text prompts using FLUX.1-dev." to "Generate images from text prompts
with FLUX.1-dev."

README.md

@@ -9,7 +9,7 @@ sdk_version: 1.23.0
 app_file: app.py
 fullWidth: true
 header: default
-short_description: A Streamlit-based app for generating images from text prompts using FLUX.1-dev.
+short_description: Generate images from text prompts with FLUX.1-dev.
 tags:
   - text-to-image
   - AI