Add Balazs's features to collection (devcontainers#138)

* Add Balazs's features to collection

I've made two features (bezel, nx) what I was missing from the feature list

* reference typo fix

Author: Balazs23

_data/collection-index.yml

@@ -243,6 +243,11 @@
   contact: https://github.com/ChristopherMacGown/devcontainer-features/issues
   repository: https://github.com/ChristopherMacGown/devcontainer-features
   ociReference: ghcr.io/christophermacgown/devcontainer-features
+- name: Devcontainer features by @Balazs
+  maintainer: Balazs23
+  contact: https://github.com/Balazs23/devcontainers-features/issues
+  repository: https://github.com/Balazs23/devcontainers-features
+  ociReference: ghcr.io/balazs23/devcontainers-features
 - name: Pwd9000-ML devcontainer templates
   maintainer: Marcel Lupo @Pwd9000-ML
   contact: https://github.com/Pwd9000-ML/devcontainer-templates/issues
@@ -252,4 +257,4 @@
   maintainer: Mikael Ahlinder
   contact: https://github.com/mickeahlinder/devcontainer-features/issues
   repository: https://github.com/mickeahlinder/devcontainer-features
-  ociReference: ghcr.io/mickeahlinder/devcontainer-features
+  ociReference: ghcr.io/mickeahlinder/devcontainer-features