docs: remove manually built table of content

Author: Lee-W

docs/README.md

@@ -5,18 +5,7 @@
 
 Using Airflow to implement our ETL pipelines.
 
-## Table of Contents
-
-- [Prerequisites](#prerequisites)
-- [Installation](#installation)
-- [Configuration](#configuration)
-- [BigQuery (Optional)](#bigquery-optional)
-- [Running the Project](#running-the-project)
-  - [Local Environment with Docker](#local-environment-with-docker)
-  - [Production](#production)
-- [Contact](#contact)
-
----
+[TOC]
 
 ## Prerequisites
 
@@ -26,6 +15,7 @@ Using Airflow to implement our ETL pipelines.
 - [uv]
 
 ## Installation
+
 We use [uv] to manage dependencies and virtual environment.
 
 Below are the steps to create a virtual environment using [uv]:
@@ -69,8 +59,8 @@ deactivate
 ### BigQuery (Optional)
 
 - Set up the Authentication for GCP: <https://googleapis.dev/python/google-api-core/latest/auth.html>
-    - After running `gcloud auth application-default login`, you will get a credentials.json file located at `$HOME/.config/gcloud/application_default_credentials.json`.
-    - Run `export GOOGLE_APPLICATION_CREDENTIALS="/path/to/keyfile.json"` if you have it.
+  - After running `gcloud auth application-default login`, you will get a credentials.json file located at `$HOME/.config/gcloud/application_default_credentials.json`.
+  - Run `export GOOGLE_APPLICATION_CREDENTIALS="/path/to/keyfile.json"` if you have it.
 - `service-account.json`: Please contact @david30907d via email or Discord. You do not need this json file if you are running the sandbox staging instance for development.
 
 ## Running the Project
@@ -111,6 +101,7 @@ make down-dev
 > The difference between production and dev/test compose files is that the dev/test compose file uses a locally built image, while the production compose file uses the image from Docker Hub.
 
 #### Use images from Artifacts
+
 If you are an authorized maintainer, you can pull the image from the [GCP Artifact Registry].
 
 Docker client must be configured to use the [GCP Artifact Registry].
@@ -132,7 +123,6 @@ Available tags:
 - `staging`: when pushing to the staging environment
 - `latest`: when pushing to the production environment
 
-
 ## Contact
 
 [PyCon TW Volunteer Data Team - Discord](https://discord.com/channels/752904426057892052/900721883383758879)