Setup repo

[Wolwer1nE]

• Update Gemspec and Gemfile 💎
• Add Linux as a platform 🐧
• Setup Build Action on Github 🛠️
• Add integration with CodeClimate ⛰️ (I will provide the secret to setup)
• Add badges 🏅
• Make sure build passes and metrics work ✨

[AkzhigitovRifat]

Took the task

[AkzhigitovRifat]

[x] Update Gemspec and Gemfile 💎 (Need to add some description)
[v] Add Linux as a platform 🐧
[v]Setup Build Action on Github 🛠️
[v] Add integration with CodeClimate ⛰️ (I will provide the secret to setup)
[v] Add badges 🏅
[v] Make sure build passes and metrics work ✨