crane/gcrane: add pages (#13853)

pages/common/gcrane.md

@@ -0,0 +1,31 @@
+# gcrane
+
+> Container images managing tool.
+> This tool implements a superset of the `crane` commands, with additional commands that are specific to `gcr.io`.
+> Some subcommands such as `append`, `auth`, `copy`, etc. have their own usage documentation which can be found under `crane`.
+> Some subcommands such as `completion`, `gc`, `help` are specific to gcrane and have their own usage documentation.
+> More information: <https://github.com/google/go-containerregistry/blob/main/cmd/gcrane/README.md>.
+
+- Execute a `gcrane` subcommand:
+
+`gcrane {{subcommand}}`
+
+- Allow pushing non-distributable (foreign) layers:
+
+`gcrane --allow-nondistributable-artifacts {{subcommand}}`
+
+- Allow image references to be fetched without TLS:
+
+`gcrane --insecure {{subcommand}}`
+
+- Specify the platform in the form os/arch{{/variant}}{{:osversion}} (e.g. linux/amd64). (default all):
+
+`gcrane --platform {{platform}} {{subcommand}}`
+
+- Enable debug logs:
+
+`gcrane {{-v|--verbose} {{subcommand}}`
+
+- Display help:
+
+`gcrane {{-h|--help}}`