Update collection-index.yml (devcontainers#89)

Given there is more than shellcheck in this collection I thought I might update it.

Author: lukewiwa

_data/collection-index.yml

@@ -118,7 +118,7 @@
   contact: https://github.com/rjfmachado/devcontainer-features/issues
   repository: https://github.com/rjfmachado/devcontainer-features
   ociReference: ghcr.io/rjfmachado/devcontainer-features
-- name: Shellcheck
+- name: Wiwa's features
   maintainer: lukewiwa
   contact: https://github.com/lukewiwa/features/issues
   repository: https://github.com/lukewiwa/features