fix(docs): clarify global installation in readme (#3781)

README.md

@@ -30,6 +30,11 @@ With the Gemini CLI you can:
 
    ```bash
    npm install -g @google/gemini-cli
+   ```
+
+   Then, run the CLI from anywhere:
+
+   ```bash
    gemini
    ```
 

docs/deployment.md

@@ -15,14 +15,17 @@ This is the recommended way for end-users to install Gemini CLI. It involves dow
 - **Global install:**
 
   ```bash
-  # Install the CLI globally
   npm install -g @google/gemini-cli
+  ```
 
-  # Now you can run the CLI from anywhere
+  Then, run the CLI from anywhere:
+
+  ```bash
   gemini
   ```
 
 - **NPX execution:**
+
   ```bash
   # Execute the latest version from NPM without a global install
   npx @google/gemini-cli

docs/sandbox.md

@@ -7,10 +7,12 @@ This document provides a guide to sandboxing in the Gemini CLI, including prereq
 Before using sandboxing, you need to install and set up the Gemini CLI:
 
 ```bash
-# install gemini-cli with npm
 npm install -g @google/gemini-cli
+```
 
-# Verify installation
+To verify the installation
+
+```bash
 gemini --version
 ```