docs: revert README.md changes (covered by #900), update README.plugins.md

Co-authored-by: aaronpowell <434140+aaronpowell@users.noreply.github.com>

Author: Copilot

README.md

@@ -65,26 +65,22 @@ An [`llms.txt`](https://awesome-copilot.github.com/llms.txt) file following the
 
 Plugins are installable packages that bundle related agents and skills, making it easy to install a curated set of resources.
 
-#### Browsing Plugins
-
-**Awesome Copilot is a default plugin marketplace** — no setup required in Copilot CLI or VS Code.
+#### Installing Plugins
 
-**GitHub Copilot CLI** — browse from within an interactive session:
+First, add the Awesome Copilot marketplace to your Copilot CLI:
 
-```
-/plugin marketplace browse awesome-copilot
+```bash
+copilot plugin marketplace add github/awesome-copilot
 ```
 
-**VS Code** — use the Extensions search view with `@agentPlugins`, or open the Command Palette and run `Chat: Plugins`.
-
-#### Installing Plugins
-
-Install any plugin directly by name:
+Then install any plugin:
 
 ```bash
 copilot plugin install <plugin-name>@awesome-copilot
 ```
 
+Alternatively, you can use the `/plugin` command within a Copilot chat session to browse and install plugins interactively.
+
 ### 🤖 Custom Agents
 
 Custom agents can be used in Copilot coding agent (CCA), VS Code, and Copilot CLI (coming soon). For CCA, when assigning an issue to Copilot, select the custom agent from the provided list. In VS Code, you can activate the custom agent in the agents session, alongside built-in agents like Plan and Agent.

docs/README.plugins.md

@@ -1,6 +1,9 @@
 # 🔌 Plugins
 
-Curated plugins of related agents and skills organized around specific themes, workflows, or use cases. Plugins can be installed directly via GitHub Copilot CLI.
+Curated plugins of related agents and skills organized around specific themes, workflows, or use cases. Plugins can be installed directly via GitHub Copilot CLI or VS Code.
+
+> **Awesome Copilot is a default plugin marketplace** — no setup required in either Copilot CLI or VS Code.
+
 ### How to Contribute
 
 See [CONTRIBUTING.md](../CONTRIBUTING.md#adding-plugins) for guidelines on how to contribute new plugins, improve existing ones, and share your use cases.
@@ -13,10 +16,13 @@ See [CONTRIBUTING.md](../CONTRIBUTING.md#adding-plugins) for guidelines on how t
 - Each plugin includes agents and skills for specific workflows
 - Plugins make it easy to adopt comprehensive toolkits for particular scenarios
 
-**Install Plugins:**
-- Use \`copilot plugin install <plugin-name>@awesome-copilot\` to install a plugin
-- Or browse to the individual files to copy content manually
-- Plugins help you discover related customizations you might have missed
+**Find & Install in Copilot CLI:**
+- Browse the marketplace from within an interactive Copilot session: `/plugin marketplace browse awesome-copilot`
+- Install a plugin: `copilot plugin install <plugin-name>@awesome-copilot`
+
+**Find & Install in VS Code:**
+- Open the Extensions search view and type `@agentPlugins` to browse available plugins
+- Or open the Command Palette and run `Chat: Plugins`
 
 | Name | Description | Items | Tags |
 | ---- | ----------- | ----- | ---- |