Various spelling improvements (#3497)

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
Co-authored-by: Sandy Tao <sandytao520@icloud.com>

docs/cli/authentication.md

@@ -12,7 +12,7 @@ The Gemini CLI requires you to authenticate with Google's AI services. On initia
       1. You have been assigned a license to a current Gemini Code Assist standard or enterprise subscription.
       1. You are using the product outside the [supported regions](https://developers.google.com/gemini-code-assist/resources/available-locations) for free individual usage.
       1. You are a Google account holder under the age of 18
-      - If you fall into one of these categories, you must first configure a Google Cloud Project Id to use, [enable the Gemini for Cloud API](https://cloud.google.com/gemini/docs/discover/set-up-gemini#enable-api) and [configure access permissions](https://cloud.google.com/gemini/docs/discover/set-up-gemini#grant-iam).
+      - If you fall into one of these categories, you must first configure a Google Cloud Project ID to use, [enable the Gemini for Cloud API](https://cloud.google.com/gemini/docs/discover/set-up-gemini#enable-api) and [configure access permissions](https://cloud.google.com/gemini/docs/discover/set-up-gemini#grant-iam).
 
       You can temporarily set the environment variable in your current shell session using the following command:
 

docs/core/tools-api.md

@@ -8,7 +8,7 @@ The Gemini CLI core (`packages/core`) features a robust system for defining, reg
   - `name`: A unique internal name (used in API calls to Gemini).
   - `displayName`: A user-friendly name.
   - `description`: A clear explanation of what the tool does, which is provided to the Gemini model.
-  - `parameterSchema`: A JSON schema defining the parameters the tool accepts. This is crucial for the Gemini model to understand how to call the tool correctly.
+  - `parameterSchema`: A JSON schema defining the parameters that the tool accepts. This is crucial for the Gemini model to understand how to call the tool correctly.
   - `validateToolParams()`: A method to validate incoming parameters.
   - `getDescription()`: A method to provide a human-readable description of what the tool will do with specific parameters before execution.
   - `shouldConfirmExecute()`: A method to determine if user confirmation is required before execution (e.g., for potentially destructive operations).

docs/tools/file-system.md

@@ -90,7 +90,7 @@ The Gemini CLI provides a comprehensive suite of tools for interacting with the
   - `path` (string, optional): The absolute path to the directory to search within. Defaults to the current working directory.
   - `include` (string, optional): A glob pattern to filter which files are searched (e.g., `"*.js"`, `"src/**/*.{ts,tsx}"`). If omitted, searches most files (respecting common ignores).
 - **Behavior:**
-  - Uses `git grep` if available in a Git repository for speed, otherwise falls back to system `grep` or a JavaScript-based search.
+  - Uses `git grep` if available in a Git repository for speed; otherwise, falls back to system `grep` or a JavaScript-based search.
   - Returns a list of matching lines, each prefixed with its file path (relative to the search directory) and line number.
 - **Output (`llmContent`):** A formatted string of matches, e.g.:
   ```

docs/troubleshooting.md

@@ -27,7 +27,7 @@ This guide provides solutions to common issues and debugging tips.
 ## Common error messages and solutions
 
 - **Error: `EADDRINUSE` (Address already in use) when starting an MCP server.**
-  - **Cause:** Another process is already using the port the MCP server is trying to bind to.
+  - **Cause:** Another process is already using the port that the MCP server is trying to bind to.
   - **Solution:**
     Either stop the other process that is using the port or configure the MCP server to use a different port.