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>

.vscode/tasks.json

@@ -4,7 +4,7 @@
     {
       "label": "generate-readme",
       "type": "shell",
-      "command": "node ${workspaceFolder}/update-readme.js",
+      "command": "node ${workspaceFolder}/eng/update-readme.js",
       "problemMatcher": [],
       "group": {
         "kind": "build",
@@ -15,7 +15,7 @@
     {
       "label": "validate-collections",
       "type": "shell",
-      "command": "node ${workspaceFolder}/validate-collections.js",
+      "command": "node ${workspaceFolder}/eng/validate-collections.js",
       "problemMatcher": [],
       "group": "build",
       "detail": "Validates all collection manifest files."
@@ -25,7 +25,7 @@
       "type": "shell",
       "command": "node",
       "args": [
-        "${workspaceFolder}/create-collection.js",
+        "${workspaceFolder}/eng/create-collection.js",
         "--id",
         "${input:collectionId}",
         "--tags",