refactor: improve introduction page heading readability (#849)

- Remove numbered prefixes from section headings to avoid line wrapping
- Reorganize comparison sections under a unified "Compare" heading
- Improve document structure and readability

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <[email protected]>

Author: d-bytebase

mintlify/introduction/what-is-bytebase.mdx

@@ -10,7 +10,7 @@ Bytebase is the DevSecOps platform that sits between your team and your database
 
 It's a unified platform specifically built for your **developer, security, DBA, and platform engineering teams** to collaborate. Its value becomes particularly critical as your organization grows, reducing the friction of managing a large number of databases and instances. Bytebase achieves this by consolidating two distinct workflows.
 
-## 1. For Productivity & Reliability: Managing Schema Changes at Scale 🚀
+## Managing Schema Changes at Scale 🚀
 
 This section covers how Bytebase makes all database changes safer and more efficient. By providing a structured process, it also enhances security by **eliminating the need for engineers to make direct changes against databases**. Bytebase supports two distinct workflows for schema changes:
 
@@ -24,7 +24,7 @@ In addition to these workflows, the platform provides overarching capabilities f
 
 **1-Click DML Rollback**: Provides streamlined, 1-click rollback for data changes (DML), allowing for instant recovery from unintended UPDATE or DELETE statements.
 
-## 2. For Security & Compliance: Governing Data Access at Scale 🛡️
+## Governing Data Access at Scale 🛡️
 
 This workflow governs how your database data is accessed, replacing the need for disparate SQL clients and shared credentials.
 
@@ -38,7 +38,9 @@ In short, Bytebase unifies the process of **changing the database** with the **p
 
 ![venn](/content/docs/what-is-bytebase/venn.webp)
 
-## How Bytebase Compares: Schema Migration Tools
+## Compare
+
+### Schema Migration Tools
 
 While Liquibase and Flyway are powerful command-line migration tools (think Git), Bytebase provides the complete platform experience (think GitHub/GitLab). It wraps these migration capabilities in a collaborative interface with approval workflows, audit trails, and enterprise controls. As the fastest-growing open source solution in this space, Bytebase has become the top choice for teams seeking a unified database DevSecOps platform.
 
@@ -48,7 +50,7 @@ While Liquibase and Flyway are powerful command-line migration tools (think Git)
 - [Bytebase vs. Flyway](https://www.bytebase.com/blog/bytebase-vs-flyway/)
 - [Bytebase vs. schemachange](https://www.bytebase.com/blog/snowflake-schema-change/)
 
-## How Bytebase Compares: SQL Clients
+### SQL Clients
 
 Traditional SQL clients like DBeaver, DataGrip, and Navicat excel at individual database access but weren't built for team collaboration or enterprise security. Bytebase transforms SQL access from a personal tool into an enterprise-ready platform—providing not just query capabilities, but also role-based permissions, data masking, audit logging, and centralized governance that eliminates the need to share database credentials.