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/events/get-event-by-id.md

@@ -8,7 +8,7 @@
 
 ## OpenAPI
 
-````yaml api-reference/gamma-openapi.json get /events/{id}
+````yaml api-spec/gamma-openapi.yaml get /events/{id}
 openapi: 3.0.3
 info:
   title: Markets API
@@ -1190,4 +1190,4 @@ components:
           type: string
           nullable: true
 
-````
+````

docs/api-reference/events/get-event-by-slug.md

@@ -8,7 +8,7 @@
 
 ## OpenAPI
 
-````yaml api-reference/gamma-openapi.json get /events/slug/{slug}
+````yaml api-spec/gamma-openapi.yaml get /events/slug/{slug}
 openapi: 3.0.3
 info:
   title: Markets API
@@ -1190,4 +1190,4 @@ components:
           type: string
           nullable: true
 
-````
+````

docs/api-reference/events/get-event-tags.md

@@ -8,7 +8,7 @@
 
 ## OpenAPI
 
-````yaml api-reference/gamma-openapi.json get /events/{id}/tags
+````yaml api-spec/gamma-openapi.yaml get /events/{id}/tags
 openapi: 3.0.3
 info:
   title: Markets API
@@ -105,4 +105,4 @@ components:
           type: boolean
           nullable: true
 
-````
+````

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

@@ -8,7 +8,7 @@
 
 ## OpenAPI
 
-````yaml api-reference/gamma-openapi.json get /events
+````yaml api-spec/gamma-openapi.yaml get /events
 openapi: 3.0.3
 info:
   title: Markets API
@@ -1300,4 +1300,4 @@ components:
           type: string
           nullable: true
 
-````
+````