Update README.md

Author: sigpwned

README.md

@@ -1,6 +1,6 @@
 # AWS Lambda Java Base Images
 
-This project provides the missing [AWS Lambda base image](https://docs.aws.amazon.com/lambda/latest/dg/runtimes-images.html) for Java 17, 18, and 19. The base images are publicly available [in the ECR Public Gallery](https://gallery.ecr.aws/aleph0io/lambda/java). You should be able to use them directly in your builds. I use these images in production for personal projects today, but they should be considered experimental.
+This project provides the missing [AWS Lambda base image](https://docs.aws.amazon.com/lambda/latest/dg/runtimes-images.html) for Java 17, 18, 19, and 20. The base images are publicly available [in the ECR Public Gallery](https://gallery.ecr.aws/aleph0io/lambda/java). You should be able to use them directly in your builds. I use these images in production for personal and commercial projects today, but per the license, they are "use at your own risk."
 
 ## Approach
 
@@ -12,7 +12,7 @@ This project uses the following process to create new Lambda base images:
 
 ## Example Lambda Function
 
-You can find an example Lambda function using these base images at [aleph0io/example-java-lambda-function](https://github.com/aleph0io/example-java-lambda-function). It's just like building any container lambda function. For ease of use, find the `Dockerfile` below. Note the `FROM` image.
+You can find an example Lambda function using these base images at [aleph0io/example-java-lambda-function](https://github.com/aleph0io/example-java-lambda-function). It's just like building any container lambda function. For ease of use, find the `Dockerfile` below. Note the `FROM` image. Java versions 18-20 are also supported.
 
     FROM public.ecr.aws/aleph0io/java/lambda:17.0.4-al2
 
@@ -27,14 +27,14 @@ The [Lambda RIE](https://github.com/aws/aws-lambda-runtime-interface-emulator) i
 ## Known Issues and Future Plans
 
 * This image is in no way optimized for cold start time, size, etc. PRs welcome!
-* Java 17, 18, and 19 are all supported.
+* Java 17, 18, 19, and 20 are all supported.
 * For now, only x86_64 is supported. I hope to publish multiarch builds including arm64 soon.
 * Java 17 preview base images have been released to [lambda/java](https://gallery.ecr.aws/lambda/java). Java 17 users should strongly consider moving to the officially-supported base images, especially once they leave preview.
 * This project will continue to support non-LTS Java versions that will never receive an officially-supported AWS Lambda base image.
 
 ## More Information
 
-You can find writeups of the [Java 17](https://sigpwned.com/2022/07/23/aws-lambda-base-images-for-java-17/) and [Java 18](https://sigpwned.com/2022/08/31/aws-lambda-base-images-for-java-18-too/) on [my blog](https://sigpwned.com/).
+You can find writeups of the [Java 17](https://sigpwned.com/2022/07/23/aws-lambda-base-images-for-java-17/), [18](https://sigpwned.com/2022/08/31/aws-lambda-base-images-for-java-18-too/), [19](https://sigpwned.com/2022/09/21/aws-lambda-base-images-for-java-19/), and [20](https://sigpwned.com/2023/03/24/community-managed-aws-lambda-base-images-for-java-20/) on [my blog](https://sigpwned.com/).
 
 ## Acknowledgements