Update documentation to reflect the corrected command for generating unit tests

Author: helizaga

docs/changelog.md

@@ -97,7 +97,7 @@ Key capabilities:
 
 - **Intelligent Test Generation**: Automatically creates unit tests that cover edge cases, error scenarios, and core functionality
 - **Context-Aware**: Generates tests that understand your existing codebase patterns and testing conventions
-- **One-Click Integration**: Simply comment `@coderabbitai auto-generate unit tests` on any pull request or specific file, or click on the checkbox available in the walkthrough comment for Early Access customers.
+- **One-Click Integration**: Simply comment `@coderabbitai generate unit tests` on any pull request or specific file, or click on the checkbox available in the walkthrough comment for Early Access customers.
 
 You can customize the generated tests to fit your specific requirements.
 

docs/finishing-touches/unit-test-generation.md

@@ -21,7 +21,7 @@ Unit Test Generation is an Early Access Experimental feature.
 
 ## Usage
 
-Once you are done with your pull request and its reviews, you may want to perform finishing touches to your code, such as adding unit tests. You can request CodeRabbit to generate unit tests by typing `@coderabbitai auto-generate unit tests` in a comment under that pull request or by clicking a checkbox under **Generate Unit Tests** in the CodeRabbit Walkthrough.
+Once you are done with your pull request and its reviews, you may want to perform finishing touches to your code, such as adding unit tests. You can request CodeRabbit to generate unit tests by typing `@coderabbitai generate unit tests` in a comment under that pull request or by clicking a checkbox under **Generate Unit Tests** in the CodeRabbit Walkthrough.
 
 Once sent, CodeRabbit will perform the following actions: