diff --git a/README.md b/README.md
index 892232c..7cfc22c 100644
--- a/README.md
+++ b/README.md
@@ -2,23 +2,38 @@
 
 # Table of Contents
 
-1. [Tooling](#1-tooling)
-   - [Clang-Tidy](#11-clang-tidy)
-     - [Clang-Tidy Analysis](#111-clang-tidy-analysis)
-     - [Automatic Fixes Locally](#112-automatic-fixes-locally)
-   - [Clang-Format](#12-clang-format)
-     - [Clang-Format Analysis](#121-clang-format-analysis)
-     - [Automatic Fixes Locally](#122-automatic-fixes-locally)
-   - [Bazel Buildifier](#13-bazel-buildifier)
-     - [How to Run](#131-how-to-run)
+- [1. Tooling](#1-tooling)
+  - [1.1. Bazel](#11-bazel)
+    - [Setup](#111-setup)
+    - [Test Run](#112-test-run)
+  - [1.2. Clang-Tidy](#12-clang-tidy)
+    - [Clang-Tidy Analysis](#121-clang-tidy-analysis)
+    - [Automatic Fixes Locally](#122-automatic-fixes-locally)
+  - [1.3. Clang-Format](#13-clang-format)
+    - [Clang-Format Analysis](#131-clang-format-analysis)
+    - [Automatic Fixes Locally](#132-automatic-fixes-locally)
+  - [1.4. Bazel Buildifier](#14-bazel-buildifier)
+    - [How to Run](#141-how-to-run)
 
 # 1. Tooling
 
-## 1.1. Clang-Tidy
+## 1.1. Bazel
+
+## 1.1.1 Setup
+
+Follow step 1 and 2 of bazel documentation: <https://bazel.build/install/ubuntu>
+
+## 1.1.2 Test Run
+
+```bash
+bazel run //examples/cpp:bin
+```
+
+## 1.2. Clang-Tidy
 
 Clang-Tidy is a static analysis tool for C++ code. It helps identify potential issues, enforce coding standards, and suggest improvements to your code. This section describes how to integrate and use Clang-Tidy with your project for both analysis and automatic fixes.
 
-### 1.1.1. Clang-Tidy Analysis
+### 1.2.1. Clang-Tidy Analysis
 
 To run Clang-Tidy analysis on your codebase using Bazel, execute the following command:
 
@@ -31,7 +46,7 @@ bazel build //... \
 
 The checks are define on .clang-tidy file.
 
-### 1.1.2. Automatic Fixes Locally
+### 1.2.2. Automatic Fixes Locally
 
 To automatically apply fixes suggested by Clang-Tidy, follow these steps:
 
@@ -58,11 +73,11 @@ To automatically apply fixes suggested by Clang-Tidy, follow these steps:
     Runs Clang-Tidy on each file using the compile_commands.json for accurate analysis.
     Applies any fixes Clang-Tidy suggests (e.g., code style corrections, best practice recommendations).
 
-## 1.2. Clang-Format
+## 1.3. Clang-Format
 
 Clang-Format is a tool that automatically formats C++ source code according to a set of predefined or custom style rules. Below are instructions for running Clang-Format analysis and applying automatic fixes to your code locally.
 
-### 1.2.1. Clang-Format Analysis
+### 1.3.1. Clang-Format Analysis
 
 To check the formatting of your code without making any changes, use the following command. It will run `clang-format` in "dry-run" mode, which simulates formatting and reports any issues without modifying files.
 
@@ -74,7 +89,7 @@ find . -name "*.cpp" -o -name "*.h" -o -name "*.hpp" -o -name "*.cc" -o -name "*
 - `-name` "*.cpp" -o -name "*.h" ... ensures all common C++ file extensions are included.
 - `xargs clang-format --dry-run --Werror` applies clang-format to the found files, in "dry-run" mode (no changes are made), and treats any formatting violations as errors (--Werror).
 
-### 1.2.2. Automatic Fixes Locally
+### 1.3.2. Automatic Fixes Locally
 
 To automatically fix the formatting of your code based on the predefined style, you can use the following command. It will rewrite the files in-place according to Clang-Format's rules.
 
@@ -82,9 +97,9 @@ To automatically fix the formatting of your code based on the predefined style,
 find . -name "*.cpp" -o -name "*.h" -o -name "*.hpp" -o -name "*.cc" -o -name "*.cxx" -o -name "*.hxx" | xargs clang-format -i
 ```
 
-## 1.3. Bazel Buildifier
+## 1.4. Bazel Buildifier
 
-### 1.3.1. How to Run
+### 1.4.1. How to Run
 
 `Buildifier` is a tool for formatting Bazel build files (e.g., `BUILD`, `WORKSPACE`). It automatically reformats these files according to a consistent style, improving readability and maintaining consistency across your project.