Prepare CLI for move into mainline

packages/cli/docs/src/cmd/README.md

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+# Commands
+
+In this chapter we will introduce all `dioxus-cli` commands.
+
+> You can also use `dioxus --help` to get cli help info.
+
+```
+dioxus 
+Build, bundle, & ship your Dioxus app
+
+USAGE:
+    dioxus [OPTIONS] <SUBCOMMAND>
+
+OPTIONS:
+    -h, --help    Print help information
+    -v            Enable verbose logging
+
+SUBCOMMANDS:
+    build        Build the Dioxus application and all of its assets
+    clean        Clean output artifacts
+    config       Dioxus config file controls
+    create       Init a new project for Dioxus
+    help         Print this message or the help of the given subcommand(s)
+    serve        Build, watch & serve the Rust WASM app and all of its assets
+    translate    Translate some html file into a Dioxus component
+```