chore: Documentation on how the CLI works

rust/noosphere-cli/README.md

@@ -5,3 +5,57 @@
 The Noosphere CLI is a reference client and pedagogical tool to demonstrate
 the principles of the Noosphere protocol and give interested users a
 no-code, low-complexity tool to synchronize content through the Noosphere.
+
+
+## Usage
+### User perspective
+```sh
+# Create an identity
+orb key create `whoami`
+
+# make a directory for your sphere.
+mkdir my-sphere
+cd my-sphere
+
+# Generate your personal sphere.
+orb sphere create --owner-key `whoami`
+
+# ..now make edits ..
+
+# see the status of files in your directory
+orb status
+
+# persist changes to the sphere
+orb save
+
+# link your sphere to a gateway by setting this identity as the counterpart
+orb config set gateway-url <gatewayurl>
+
+# sync your changes with the upstream gateway
+orb sync
+
+# sync data from a different sphere. Note, you'll need to
+# `orb auth add <did>` from that other sphere.
+orb sphere join <their DID> --local-key `whoami`
+orb sync # pull in their changes
+
+# then follow the onscreen instructions.
+```
+
+### Gateway perspective
+Note: The name `mygateway` below isn't special. Just a chosen name.
+
+```sh
+# Create an identity
+orb key create mygateway
+
+# make a directory for your sphere.
+mkdir my-sphere
+cd my-sphere
+
+# Generate your personal sphere.
+orb sphere create --owner-key mygateway
+
+# Pair this with a user identity
+orb config set counterpart <DID from the user>
+```