fix image path + can we plz have the docs link higher up!? (#1190)

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> [!IMPORTANT]
> Fixes image path and moves documentation link higher in `README.md`.
> 
>   - **Image Path**:
> - Corrects image path from `docs/assets/bfcl-baml-latest.png` to
`docs/old/assets/bfcl-baml-latest.png` in `README.md`.
>   - **Documentation Link**:
> - Moves the documentation link to a higher position in `README.md` for
better visibility.
> 
> <sup>This description was created by </sup>[<img alt="Ellipsis"
src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=BoundaryML%2Fbaml&utm_source=github&utm_medium=referral)<sup>
for d1caea8. It will automatically
update as commits are pushed.</sup>

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Co-authored-by: hellovai <[email protected]>

README.md

@@ -16,8 +16,9 @@ BAML LLM functions plug into python, TS, and other languages, which makes it eas
 
 BAML outperforms all other current methods of obtaining structured data, even when using it with GPT3.5. It also outperforms models fine-tuned for tool-use using the [Berkeley Function Calling Benchmark](https://gorilla.cs.berkeley.edu/leaderboard.html). See our [interactive results](https://www.boundaryml.com/blog/sota-function-calling?q=0). [Read more on our Schema-Aligned Parser](https://www.boundaryml.com/blog/schema-aligned-parsing). 
 
-<img src="docs/assets/bfcl-baml-latest.png" width="80%" alt="Boundary Studio">
+<img src="docs/old/assets/bfcl-baml-latest.png" width="80%" alt="Boundary Studio">
 
+## Documentation - [docs.boundaryml.com](https://docs.boundaryml.com)
 ## Try it out in the playground -- [PromptFiddle.com](https://promptfiddle.com)
 
 Share your creations and ask questions in our [Discord](https://discord.gg/BTNBeXGuaS).