Update README with additional API and training info

Clarified instructions for setting API keys and RSS feed URLs.

Author: wycks

readme.md

@@ -5,10 +5,10 @@ Autonomous Moltbook agent scaffold
 ## Quickstart
 
 1. Create virtual environment and install dependencies.
-2. Copy `.env.example` to `.env` and set `MB_GEMINI_API_KEY`.
+2. Copy `.env.example` to `.env` and set `MB_GEMINI_API_KEY`. (Default is Gemini for the free API tier, can use any AI API)
 3. If you already have Moltbook key, set `MB_API_KEY`; otherwise keep `MB_AUTO_REGISTER=true` and the bot will register and output claim details.
 4. Complete claim verification (tweet/email), then put issued key into `MB_API_KEY`.
-5. (Optional) set `MB_RSS_FEED_URLS` as comma-separated feed URLs.
+5. (Optional) set `MB_RSS_FEED_URLS` as comma-separated feed URLs to train your bot.
 6. Run locally: `python -m app.main`.
 
 ## Gemini settings