Update collection-index.yml (devcontainers#612)

Co-authored-by: Álvaro Rausell Guiard <33221237+AlvaroRausell@users.noreply.github.com>

Author: EstebenR

_data/collection-index.yml

@@ -1270,6 +1270,11 @@
   contact: https://github.com/pairspaces/devcontainers/issues
   repository: https://github.com/pairspaces/devcontainers
   ociReference: ghcr.io/pairspaces/devcontainers/pairspaces
+- name: EstebenR Devcontainers
+  maintainer: EstebenR (Papabos)
+  contact: https://github.com/EstebenR/devcontainers/issues
+  repository: https://github.com/EstebenR/devcontainers/
+  ociReference: ghcr.io/estebenr/devcontainers
 - name: C++ Dev Container Template
   maintainer: Philips Software
   contact: https://github.com/philips-software/amp-devcontainer/issues