Standardize the README.md files across Qt modules

# Qt <Module>  
  
<!--- Breif description of the module, often the first paragraph of the   
<module>/src/…/doc/src/<module>.qdoc  
  
E.g.,   
  
Qt Quick 3D Physics provides a high-level API for physics simulation.   
It supports simulating interactive rigid bodies as well as static meshes  
and non-colliding bodies used for detecting overlaps. Every simulated body  
can have its own physical properties like mass, density and friction.  
  
--->  
  
## Documentation  
  
<!--- Brief note on where to find the documentation. This can point to the online  
page, and also provide a brief instruction on how to find, and build the  
documentation of the module, maybe a link to the qdoc file.

E.g.,
  
The Qt Quick 3D Physics documentation is available as a submodule of the   
Qt Framework’s documentation. You can find it in the Qt documentation   
[online](https://doc-snapshots.qt.io/qt6-dev/qtquick3dphysics-index.html),  
or you can build it locally from the source code by building the QtDoc module.  
In addition, you may access the human-readable .qdoc documentation files directly, located in `src/<module>/doc/src` directory.  
  
--->  
  
## Build  
  
<!--- Brief description fo the build process, e.g.,   
  
Qt <Module> is part of Qt Framework, and it may depends on other modules. See  
[here](https://doc.qt.io/qt-6/build-sources.html) on how to build Qt framework, and its modules. 
  
If you are familiar with CMake, you may configure and build Qt <Module> by passing  
`-DQT_BUILD_MODULES=<module>` variable to the `cmake` command when configuring  
the Qt Framework, e.g.,   
  
cd qt-everywhere-src-%VERSION% mkdir build; cd build cmake .. -DQT_BUILD_MODULES= -GNinja ninja  
--->  
  
  
## Reporting Issues  
  
<!--- How and where to report an issue,  
  
If you encounter any issues while using Qt Quick 3D Physics, you can report  
them on the [Qt bug tracker](https://bugreports.qt.io/). Before submitting a new  
issue, please check the existing issues to see if the issue has already been  
reported, and make sure to select the “Quick: 3D Physics” component when  
creating a new issue.  
  
--->  
  
## Contributing  
  
<!--- How to contribute  
  
We welcome contributions to Qt <Module>. If you are interested in   
contributing, please read the   
[Qt Contribution Guidelines](https://wiki.qt.io/Qt_Contribution_Guidelines)   
for more details.  
  
--->  
  
  
## License  
  
<!--- About licensing  
  
Qt Quick 3D Physics is available under the commercial license from The Qt   
Company. In addition, it is available under the   
[GNU General Public License, version 3](http://www.gnu.org/licenses/gpl-3.0.html).  
Further 3rd party Licenses and Attributions can be found in the LICENSES folder,  
as well as documented   
[here](https://doc-snapshots.qt.io/qt6-dev/qtquick3dphysics-index.html#license-and-attributions).  
  
--->