Fix a typo in README.md

Author: aleksandar-stefanovic

README.md

@@ -317,7 +317,7 @@ To use the keys and credentials required for publication in your GitHub Action w
 
 Click on the `New repository secret` button, and add the following secrets:
 
-- `MAVEN_CENTRAL_PASSWORD` and `MAVEN_CENTRAL_PASSWORD` are the values generated by the Central Portal website in the [Generate User Token](#generate-the-user-token) section.
+- `MAVEN_CENTRAL_USERNAME` and `MAVEN_CENTRAL_PASSWORD` are the values generated by the Central Portal website in the [Generate User Token](#generate-the-user-token) section.
 - `SIGNING_KEY_ID` is **the last 8 characters** of your signing key’s identifier.
 - `SIGNING_PASSWORD` is the passphrase you’ve provided when generating your signing key.
 - `GPG_KEY_CONTENTS` should contain the contents of your GPG private key file, which you’ve created earlier in the [Export your private key](#export-your-private-key) section.
@@ -378,4 +378,4 @@ There’s also another task available which both uploads and releases the artifa
 
 # Other resources
 * [Publishing via the Central Portal](https://central.sonatype.org/publish-ea/publish-ea-guide/)
-* [Gradle Maven Publish Plugin \- Publishing to Maven Central](https://vanniktech.github.io/gradle-maven-publish-plugin/central/)
+* [Gradle Maven Publish Plugin \- Publishing to Maven Central](https://vanniktech.github.io/gradle-maven-publish-plugin/central/)