choco-apikey: add page (#2836)

pages/windows/choco-apikey.md

@@ -0,0 +1,20 @@
+# choco-apikey
+
+> Manage API keys for Chocolatey sources.
+> Homepage: <https://chocolatey.org/docs/commands-apikey>.
+
+- Display a list of sources and their API keys:
+
+`choco apikey`
+
+- Display a specific source and its API key:
+
+`choco apikey --source "{{source_url}}"`
+
+- Set an API key for a source:
+
+`choco apikey --source "{{source_url}}" --key "{{api_key}}"`
+
+- Remove an API key for a source:
+
+`choco apikey --source "{{source_url}}" --remove`