docs(README.md): make it easier for readers to understand what Commitizen does

Author: bearomorphism

docs/README.md

@@ -18,17 +18,26 @@
 
 ## About
 
-Commitizen is a release management tool designed for teams.
+Commitizen is a powerful release management tool that helps teams maintain consistent and meaningful commit messages while automating version management.
 
-Commitizen assumes your team uses a standard way of committing rules
-and from that foundation, it can bump your project's version, create
-the changelog, and update files.
+### What Commitizen Does
 
-By default, commitizen uses [conventional commits][conventional_commits], but you
-can build your own set of rules and publish them.
+By enforcing standardized commit conventions (defaulting to [Conventional Commits][conventional_commits]), Commitizen helps teams:
 
-Using a standardized set of rules to write commits makes commits easier to read and enforces writing
-descriptive commits.
+- Write clear, structured commit messages
+- Automatically manage version numbers using semantic versioning
+- Generate and maintain changelogs
+- Streamline the release process
+
+### Key Benefits
+
+With just a simple `cz bump` command, Commitizen handles:
+
+1. **Version Management**: Automatically bumps version numbers and updates version files based on your commit history
+2. **Changelog Generation**: Creates and updates changelogs following the [Keep a changelog][keepchangelog] format
+3. **Commit Standardization**: Enforces consistent commit message formats across your team
+
+This standardization makes your commit history more readable and meaningful, while the automation reduces manual work and potential errors in the release process.
 
 ### Features