Fix typos

[ENOCKMOSETI]

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• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.
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[0xHieu]

This pull request fixed issue #11

[0xHieu]

@ENOCKMOSETI This branch has conflicts so you need to solve these conflicts and after that we can merge this pull request.

[0xHieu]

@ENOCKMOSETI tackle this issue on PR-CI check https://github.com/fbdevelopercircles/open-source-edu-bot/pull/38/checks

[aboullaite]

Thank you @ENOCKMOSETI for bearing with us! This PR is close to merge, it just need to have @elinguiuriel remarks and fix conflicts 👍

[ENOCKMOSETI]

Please update your pull request regarding my comments Also please make your PR in developbranch

Updated pull request regarding comments opened a PR in develop branch