fix(#1085): help files initial commit

[vomikan]

make sure your code would work on both windows, linux and osx

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This change is 

[slodki]

@vomikan every PR you change database submodule - please verify this before merging to master

[vomikan]

@slodki I didn't change submodule. Even clone repository from scratch. Seems something wrong in my logic.

[slodki]

You should:

• use git submodule update --init --recursive to update submodule wroking tree to state requested by MMEX main project for checkouted branch/commit

  Update the registered submodules to match what the superproject expects by cloning missing submodules and updating the working tree of the submodules.

  switching branch or commit in main project can leave submodule not updated!

• don't use git commit -a but manually control files/dirs added to commit created (use git add and verify using git status)

• verify modified files included in commits using git diff --stat origin/master..HEAD before pushing / merging changes
  GitHub will present submodule updates in commit details too.