Eclipse README.adoc could be more clear in regard to what install files/reosurces are needed

[feuertier]

https://github.com/Systems-Modeling/SysML-v2-Release/blob/master/install/eclipse/README.adoc

When I point people to this resource, I still get questions about what to install. Common issues reported to me:

• "Eclipse 2024-03 (4.31), with Java Development Kit" is not an option for download from Eclipse

• • Is this the install that is intended? "Eclipse IDE for Java Developers" (Eclipse IDE 2024-03)

• When installing PlantUML, which files are needed? Users are installing everything, including source.

[tt77654321]

Similarly, after following the README document, the normal txt format can be displayed graphically, but when I open the sysml file, it cannot be displayed. The plantuml area is blank for some reason?