updating docs for removing edge or vertex in Java in impl-stats

[sapienza88]

This open PR is for updating the docs for newly implemented graph features (graph vertex and edge removal) in Java

[sapienza88]

@yangxk1 pls proceed to reviewing my past PRs

[yangxk1]

@unical1988 , the docs should be modified after the code pr merge, otherwise it will cause confusion. To modify the PR of the code, please make sure that they can pass the CI workflows :)

[sapienza88]

@unical1988 , the docs should be modified after the code pr merge, otherwise it will cause confusion. To modify the PR of the code, please make sure that they can pass the CI workflows :)

aside from can pass the CI workflows, pls review the PRs , I am not writing for myself the code but for the project, CI comes after the code is discussed here and reviewer

[yangxk1]

@unical1988 , the docs should be modified after the code pr merge, otherwise it will cause confusion. To modify the PR of the code, please make sure that they can pass the CI workflows :)

aside from can pass the CI workflows, pls review the PRs , I am not writing for myself the code but for the project, CI comes after the code is discussed here and reviewer

For example, the following ci:

https://github.com/apache/incubator-graphar/actions/runs/15913059612/job/44900162946?pr=711

https://github.com/apache/incubator-graphar/actions/runs/16003204977/job/45210287183?pr=714

[sapienza88]

@unical1988 , the docs should be modified after the code pr merge, otherwise it will cause confusion. To modify the PR of the code, please make sure that they can pass the CI workflows :)

aside from can pass the CI workflows, pls review the PRs , I am not writing for myself the code but for the project, CI comes after the code is discussed here and reviewer

For example, the following ci:

https://github.com/apache/incubator-graphar/actions/runs/15913059612/job/44900162946?pr=711

https://github.com/apache/incubator-graphar/actions/runs/16003204977/job/45210287183?pr=714

These come after reviewing the code! (as a matter of fact these are formatting related issues easily solved with spotless:apply of maven.

[yangxk1]

rerun mvn spotless:apply and push to your branch, ci will be triggered again :)

[sapienza88]

rerun mvn spotless:apply and push to your branch, ci will be triggered again :)

I will do that but pls review the other PRs as well so we can merge them