v2.1 official

In this v2.1 version, we following changes:

• create more menu items.
• add read file and display content from the local feature.
• open URL on the browser.
• rename some variables
• enhance image and sound

Details

• [ImgBot] Optimize images by @imgbot in #11
• docs: add font-end-pro as a contributor for ideas by @allcontributors in #13
• docs: add thuongtruong1009 as a contributor for code, ideas, code by @allcontributors in #14
• docs: add ImgBotApp as a contributor for data, tool by @allcontributors in #15
• chore: add template contributing rule by @thuongtruong1009 in #16
• feat: add CI workflow by @thuongtruong1009 in #18
• chore: update contributing list by @thuongtruong1009 in #19
• Update CONTRIBUTING.md by @0826240270 in #21
• docs: add 0826240270 as a contributor for ideas by @allcontributors in #22
• Update CONTRIBUTING.md by @tung01673641696 in #24
• docs: add tung01673641696 as a contributor for ideas by @allcontributors in #25
• Add a Codacy badge to README.md by @codacy-badger in #26
• docs: add codacy-badger as a contributor for test, bug, data by @allcontributors in #27
• Refactoring the code by @raydelto in #29
• docs: add raydelto as a contributor for the bug, mentoring by @allcontributors in #30
• fix: update test space actions by @thuongtruong1009 in #31
• script.py by @wpolanco in #32
• docs: add Polanco as a contributor for ideas, a11y by @allcontributors in #33
• Added some comments by @Sanjulata19 in #36
• docs: add Sanjulata19 as a contributor for ideas, mentoring by @allcontributors in #37
• feat: add some Illustration screenshot images by @thuongtruong1009 in #38

New Contributors

• @imgbot made their first contribution in #11
• @allcontributors made their first contribution in #13
• @0826240270 made their first contribution in #21
• @tung01673641696 made their first contribution in #24
• @codacy-badger made their first contribution in #26
• @raydelto made their first contribution in #29
• @wpolanco made their first contribution in #32
• @Sanjulata19 made their first contribution in #36

Full Changelog: v1.0.1...v2.1