Add OpenRuna AI resource catalog

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: dcnl1980

README.md

@@ -66,3 +66,7 @@ If you have ideas for new examples or guides, share them on the [issues page](ht
 
 - [Anthropic on AWS](https://github.com/aws-samples/anthropic-on-aws): Explore examples and solutions for using Claude on AWS infrastructure.
 - [AWS Samples](https://github.com/aws-samples/): A collection of code samples from AWS which can be adapted for use with Claude. Note that some samples may require modification to work optimally with Claude.
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+## Directories
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+- [OpenRuna](https://www.openruna.com/best/ai-coding-prompts) — Searchable graph of AI prompts, MCP servers, agents, and workflows.