fix: update AgentOps documentation links to point to correct examples

- Update English and Portuguese AgentOps documentation to link to correct examples in AgentOps repository
- Remove Instagram post example that doesn't exist in AgentOps repository
- Change CardGroup from 3 to 2 columns to accommodate removal
- Add tests to validate documentation links are accessible and contain AgentOps implementation

Fixes #3247

Co-Authored-By: João <joao@crewai.com>

docs/en/observability/agentops.mdx

@@ -79,11 +79,11 @@ This feature is useful for debugging and understanding how agents interact with
 
 ### Crew + AgentOps Examples
 
-<CardGroup cols={3}>
+<CardGroup cols={2}>
   <Card
   title="Job Posting"
   color="#F3A78B"
-  href="https://github.com/joaomdmoura/crewAI-examples/tree/main/job-posting"
+  href="https://github.com/AgentOps-AI/agentops/blob/main/examples/crewai/job_posting.py"
   icon="briefcase"
     iconType="solid"
   >
@@ -92,21 +92,12 @@ This feature is useful for debugging and understanding how agents interact with
   <Card
     title="Markdown Validator"
     color="#F3A78B"
-    href="https://github.com/joaomdmoura/crewAI-examples/tree/main/markdown_validator"
+    href="https://github.com/AgentOps-AI/agentops/blob/main/examples/crewai/markdown_validator.py"
     icon="markdown"
       iconType="solid"
     >
          Example of a Crew agent that validates Markdown files.
     </Card>
-    <Card
-    title="Instagram Post"
-    color="#F3A78B"
-    href="https://github.com/joaomdmoura/crewAI-examples/tree/main/instagram_post"
-    icon="square-instagram"
-      iconType="brands"
-    >
-      Example of a Crew agent that generates Instagram posts.
-  </Card>
 </CardGroup>
 
 ### Further Information