update readme

README.md

@@ -16,7 +16,7 @@ license: mit
 
 RAGTheDocs is an open-source library that allows you to deploy retrieval augmented generation (RAG) on any readthedocs documentation with a one-click deploy on huggingface spaces!
 
-## Usage
+## Usage 👉
 
 1) Go to the [example space](https://huggingface.co/spaces/jerpint/RAGTheDocs)
 2) Duplicate the space:
@@ -26,7 +26,7 @@ RAGTheDocs is an open-source library that allows you to deploy retrieval augment
 3) Set your environment variables:
 * `OPENAI_API_KEY`: Needed for the app to work, e.g. `sk-...`
 * `READTHEDOCS_URL`: The url of the website you are interested in scraping
-* `READTHEDOCS_VERSION`: This is important only if there exist multiple versions of the docs (e.g. "en/v0.2.7" or "en/latest"). If left empty, it will scrape all available versions.
+* `READTHEDOCS_VERSION`: This is important **only** if there exist multiple versions of the docs (e.g. "en/v0.2.7" or "en/latest"). If left empty, it will scrape all available versions (there can be many for open-source projects!).
 
 **WARNING** This library is experimental and automatically calls OpenAI APIs for you. Use at your own risk! ⚠️
 
@@ -37,4 +37,4 @@ RAGTheDocs is an open-source library that allows you to deploy retrieval augment
 
 - **RAG Interface:** It comes built-in with a gradio UI for users to interact with [Buster 🤖](https://github.com/jerpint/buste) our RAG agent.
 
-- **Customization Options:** Tailor RAGtheDocs to your needs with customizable settings and options.
+- **Customization Options:** Tailor RAGtheDocs prompts and settings with customizable settings and options.