Add missing flags to usage.md

[leszek-vechain]

Description

Added missing command line flags to usage.md file.

Fixes 208

Type of change

• [x] This change is a documentation update

How Has This Been Tested?

• No test needed, just a documentation update

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] New and existing E2E tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules
• [x] I have not added any vulnerable dependencies to my code

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 62.54%. Comparing base (b18c7a6) to head (52f5a95).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #754 +/- ## ========================================== - Coverage 62.55% 62.54% -0.02% ========================================== Files 198 198 Lines 18071 18071 ========================================== - Hits 11304 11302 -2 - Misses 5683 5684 +1 - Partials 1084 1085 +1 ```

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