Update Polymarket documentation (2026-02-19)

- Added new documentation URLs from llms.txt index
- Updated TARGET.md with 244 total documentation pages
- Scraped new pages for trading, concepts, and API reference sections
- Updated changelog and new index pages

docs/api-reference/comments/get-comments-by-comment-id.md

@@ -8,7 +8,7 @@
 
 ## OpenAPI
 
-````yaml api-reference/gamma-openapi.json get /comments/{id}
+````yaml api-spec/gamma-openapi.yaml get /comments/{id}
 openapi: 3.0.3
 info:
   title: Markets API
@@ -209,4 +209,4 @@ components:
           type: string
           nullable: true
 
-````
+````

docs/api-reference/comments/get-comments-by-user-address.md

@@ -8,7 +8,7 @@
 
 ## OpenAPI
 
-````yaml api-reference/gamma-openapi.json get /comments/user_address/{user_address}
+````yaml api-spec/gamma-openapi.yaml get /comments/user_address/{user_address}
 openapi: 3.0.3
 info:
   title: Markets API
@@ -234,4 +234,4 @@ components:
           type: string
           nullable: true
 
-````
+````

docs/api-reference/comments/list-comments.md

@@ -8,7 +8,7 @@
 
 ## OpenAPI
 
-````yaml api-reference/gamma-openapi.json get /comments
+````yaml api-spec/gamma-openapi.yaml get /comments
 openapi: 3.0.3
 info:
   title: Markets API
@@ -248,4 +248,4 @@ components:
           type: string
           nullable: true
 
-````
+````