Update OpenAPI spec links to use raw GitHub URLs

Author: julia-script

llms.txt

@@ -101,5 +101,5 @@ Requires API key. Base URL: `https://pro-api.llama.fi`
 
 ## Optional
 
-- [OpenAPI spec (free)](/defillama-openapi-free.json): Full OpenAPI 3.0 specification for free endpoints
-- [OpenAPI spec (pro)](/defillama-openapi-pro.json): Full OpenAPI 3.0 specification for pro endpoints
+- [OpenAPI spec (free)](https://raw.githubusercontent.com/DefiLlama/api-docs/0bf9c31cf2d4fa2129fb69b377737fa60540eeeb/defillama-openapi-free.json): Full OpenAPI 3.0 specification for free endpoints
+- [OpenAPI spec (pro)](https://raw.githubusercontent.com/DefiLlama/api-docs/0bf9c31cf2d4fa2129fb69b377737fa60540eeeb/defillama-openapi-pro.json): Full OpenAPI 3.0 specification for pro endpoints