Add "Installing Pinniped" docs page.

Signed-off-by: Matt Moyer <moyerm@vmware.com>

site/config.yaml

@@ -27,6 +27,9 @@ menu:
   - name: Overview
     url: /docs/
     weight: 100
+  - name: Install
+    url: /docs/install/
+    weight: 110
   - name: Architecture
     url: /docs/architecture/
   - name: Demo

site/content/docs/install.md

@@ -0,0 +1,21 @@
+---
+title: "Installing Pinniped"
+cascade:
+  layout: docs
+---
+
+# Installing Pinniped
+
+## Install the CLI
+
+- Find the appropriate binary for your platform from the [latest release](https://github.com/vmware-tanzu/pinniped/releases/latest).
+
+- Use Homebrew on macOS: `brew install vmware-tanzu/pinniped/pinniped-cli`.
+
+## Install the Concierge
+
+- See the [concierge deployment guide](https://github.com/vmware-tanzu/pinniped/tree/main/deploy/concierge).
+
+## Install the Supervisor
+
+- See the [supervisor deployment guide](https://github.com/vmware-tanzu/pinniped/tree/main/deploy/supervisor).