upd readme

README.md

@@ -20,17 +20,17 @@ Sidekick is a simple but versatile agentic framework written in Go 1.25. It prov
 *   **Internal Tools:** Built-in tools for file I/O (`read_file`, `write_file`, `grep_file`, `edit_file`) and an optional, secure `shell_exec` tool for running POSIX shell commands.
 *   **Configuration Driven:** Easily configure models, agents, tools, and MCP servers via a declarative `config.toml` file.
 
-## Internal Tools
+## Internal tools
 
 Sidekick includes a set of internal tools that are always available to agents. These tools provide common file operations and system access.
 
-### File Tools
+### File tools
 - `read_file`: Read a file with optional line windowing.
 - `write_file`: Overwrite a file with new content.
 - `grep_file`: Regex search with surrounding context.
 - `edit_file`: Replace a string or block of lines in a file.
 
-### shell_exec Tool
+### shell_exec tool
 
 The `shell_exec` tool allows an agent to run arbitrary POSIX shell commands and receive combined stdout/stderr output. 
 
@@ -163,7 +163,7 @@ user's request and delegate tasks accordingly.
     *   Mouse wheel is also supported.
 *   **Quit:** Press `Ctrl+C` or `Esc` to exit.
 
-### Running the Sidekick MCP Server
+### Running the Sidekick MCP server
 
 Sidekick can also act as an MCP server, allowing other LLM-powered applications to leverage its agentic capabilities.
 
@@ -183,7 +183,7 @@ port = 8080      # for sse/http
 
 The server provides a `query` tool that routes requests to your coordinator agent, maintaining conversation history if provided.
 
-### Using the Framework Programmatically
+### Using the framework programmatically
 
 ```go
 package main