docs: specify python version and re-word list

README.md

@@ -1,4 +1,7 @@
 # image_upload
-* `pip install requirements.txt`
+
-* create static/images folder.
+Requires Python >= 3.11.x 👍
-* launch this application. `python upload.py`
+
+* install dependencies: `pip install -r requirements.txt`
+* create static images folder: `mkdir -p ./static/images`
+* launch the application: `python upload.py`