Update Python version to 3.12.4 and add .env.Example file

Author: martinibach

Diff for: streamlit_fastapi_togetherai_llama/.env.example

@@ -1 +1,8 @@
 TOGETHER_API_KEY=<your-together-api-key>
+
+# Restack Cloud (Optional)
+
+# RESTACK_ENGINE_ID=<your-engine-id>
+# RESTACK_ENGINE_API_KEY=<your-engine-api-key>
+# RESTACK_ENGINE_ADDRESS=<your-engine-address>
+# RESTACK_CLOUD_TOKEN=<your-cloud-token>

Diff for: streamlit_fastapi_togetherai_llama/.gitignore

@@ -1,3 +1,2 @@
 .DS_Store
-.env
-poetry.lock
+.env

Diff for: streamlit_fastapi_togetherai_llama/README.md

@@ -33,7 +33,7 @@ The model will act as a pirate and you can send it prompts from the streamlit ui
 4. Install dependencies using Poetry:
 
 ```bash
-poetry env use 3.12
+poetry env use 3.12.4
 ```
 
 ```bash