Fix user guide

Fix emoji in user guide.
Github pages markdown do not support GitHub emojis.

Fix user guide

Fix emoji in user guide.
Github pages markdown do not support GitHub emojis.

Use GitHub Actions to set up Continuous Integration (CI).

Merge pull request #4 from camille-readbean/branch-B-Snooze

B-Snooze

Add B-Snooze ability to snooze tasks

Merge pull request #3 from camille-readbean/branch-A-Streams

Merge branch-A-Streams.
Modify Find to make use of Streams.
* FindCommand now use Stream and filter to search for the task with a keyword.

Write some full commit messages

Merge pull request #2 from camille-readbean/branch-A-CodeQuality

merge Branch A-CodeQuality

Merge pull request #1 from camille-readbean/branch-A-Assertions

Branch-A-Assertions

Add some javadocs and style issue