Fix typo in Huggingface table

Author: endolith

docs/language-models/hosted-models/huggingface.mdx

@@ -45,4 +45,4 @@ Set the following environment variables [(click here to learn how)](https://chat
 
 | Environment Variable   | Description                 | Where to Find                                                                      |
 | ---------------------- | --------------------------- | ---------------------------------------------------------------------------------- |
-| `HUGGINGFACE_API_KEY'` | Huggingface account API key | [Huggingface -> Settings -> Access Tokens](https://huggingface.co/settings/tokens) |
+| `HUGGINGFACE_API_KEY` | Huggingface account API key | [Huggingface -> Settings -> Access Tokens](https://huggingface.co/settings/tokens) |