Partners (#354)

* initial prototype of partners collection with featured collection support

* Starting to add the partners

* Preparing the repo for how the custom agents will work

* moving some files around

* Moving a bunch of stuff around to make the file easier to read

* improving the front matter parsing by using a real library

* Some verbage updates

* some more verbage

* Fixing spelling mistake

* tweaking badges

* Updating contributing guide to be correct

* updating casing to match product

* More agents

* Better handling link to mcp registry

* links to install mcp servers fixed up

* Updating collection tags

* writing the mcp registry url out properly

* Adding custom agents for C# and WinForms

Expert custom agents to improve your experience when working with C# and WinForms in Copilot

* Adding to agents readme

* Adding PagerDuty agent

* Fixing description for terraform agent

* Adding custom agents to the README usage

* Removing the button to make the links more obvious

* docs: relocate category READMEs to /docs and update generation + internal links

* Updating prompts for new path

* formatting

---------

Co-authored-by: Chris Patterson <chrispat@github.com>

collections/partners.collection.yml

@@ -0,0 +1,43 @@
+id: partners
+name: Partners
+description: Custom agents that have been created by GitHub partners
+tags:
+  [
+    devops,
+    security,
+    database,
+    cloud,
+    infrastructure,
+    observability,
+    feature-flags,
+    cicd,
+    migration,
+    performance,
+  ]
+items:
+  - path: agents/amplitude-experiment-implementation.agent.md
+    kind: agent
+  - path: agents/arm-migration.agent.md
+    kind: agent
+  - path: agents/dynatrace-expert.agent.md
+    kind: agent
+  - path: agents/jfrog-sec.agent.md
+    kind: agent
+  - path: agents/launchdarkly-flag-cleanup.agent.md
+    kind: agent
+  - path: agents/neon-migration-specialist.agent.md
+    kind: agent
+  - path: agents/neon-optimization-analyzer.agent.md
+    kind: agent
+  - path: agents/octopus-deploy-release-notes-mcp.agent.md
+    kind: agent
+  - path: agents/stackhawk-security-onboarding.agent.md
+    kind: agent
+  - path: agents/terraform.agent.md
+    kind: agent
+  - path: agents/pagerduty-incident-responder.agent.md
+    kind: agent
+display:
+  ordering: alpha
+  show_badge: true
+  featured: true