crane/gcrane: add pages (#13853)

pages/common/crane-push.md

@@ -0,0 +1,20 @@
+# crane push
+
+> Push local image contents to a remote registry.
+> More information: <https://github.com/google/go-containerregistry/blob/main/cmd/crane/doc/crane_push.md>.
+
+- Push local image to remote registry:
+
+`crane push {{path/to/tarball}} {{image_name}}`
+
+- Path to file with list of published image references:
+
+`crane push {{path/to/tarball}} {{image_name}} --image-refs {{path/to/filename}}`
+
+- Push a collection of images as a single index (required if path has multiple images):
+
+`crane push {{path/to/tarball}} {{image_name}} --index`
+
+- Display help:
+
+`crane push {{-h|--help}}`