Docs: Update introduction on docs homepage

[ConnorKirk]

What were you searching in the docs?

//

Is this related to an existing documentation section?

No response

How can we improve?

Update the introduction of the Java docs page. It currently says:

Powertools for AWS Lambda (Java) is a suite of utilities for AWS Lambda Functions that makes tracing with AWS X-Ray, structured logging and creating custom metrics asynchronously easier.

It's missing all the other good stuff that Powertools for Java has added.

Got a suggestion in mind?

I suggest matching the other languages (for now)

Powertools for AWS Lambda (Java) is a developer toolkit to implement Serverless best practices and increase developer velocity.

Acknowledgment

• I understand the final update might be different from my proposed suggestion, or refused.

[ConnorKirk]

I'm happy to make the PR

[anafalcao]

Hey @ConnorKirk ! Thanks for opening this issue, I'm assigning it you.

[phipag]

Thanks @ConnorKirk !

[dreamorosi]

@ConnorKirk any update on the PR?