* Added template and description for module flags
Because +lsp and +meghanada are mutually exclusive I thought I would
create a separate section for each feature and add descriptions what
they each offer. So far only +lsp is done.
* First draft for java documentation
The second plugin +meghanada is explained as well as some instructions
how to install JDK 11 and OpenJDK 11.
* Do requested edits to README
* Regenerate TOC in readme
* Reformat README
Co-authored-by: Henrik Lissner <accounts@v0.io>
