Add devcontainer features and templates by iyaki to collection (#665)

* Add devcontainer features by iyaki to index

* Add Devcontainer templates by iyaki to collection index

---------

Co-authored-by: Abdurrahmaan Iqbal <abdurriq@github.com>

Author: iyaki

_data/collection-index.yml

@@ -1411,3 +1411,13 @@
   contact: https://github.com/alan-chen-dongsheng/devcontainer-templates/issues
   repository: https://github.com/alan-chen-dongsheng/devcontainer-templates
   ociReference: ghcr.io/alan-chen-dongsheng/devcontainer-templates
+- name: Devcontainer features by iyaki
+  maintainer: iyaki
+  contact: https://github.com/iyaki/devcontainer-features/issues
+  repository: https://github.com/iyaki/devcontainer-features
+  ociReference: ghcr.io/iyaki/devcontainer-features
+- name: Devcontainer templates by iyaki
+  maintainer: iyaki
+  contact: https://github.com/iyaki/devcontainer-templates/issues
+  repository: https://github.com/iyaki/devcontainer-templates
+  ociReference: ghcr.io/iyaki/devcontainer-templates