Update providers.mdx because of small typo (#2539)

packages/web/src/content/docs/providers.mdx

@@ -123,7 +123,7 @@ To use Amazon Bedrock with opencode:
 
 We recommend signing up for [Claude Pro](https://www.anthropic.com/news/claude-pro) or [Max](https://www.anthropic.com/max), it's the most cost-effective way to use opencode.
 
-Once you've singed up, run `opencode auth login` and select Anthropic.
+Once you've signed up, run `opencode auth login` and select Anthropic.
 
 ```bash
 $ opencode auth login