feat: Documentation and API reference (#348)

Co-authored-by: Vadim Smirnov <smirnou.vadzim@gmail.com>
Co-authored-by: zakariasaad <zakaria.elas@gmail.com>
Co-authored-by: Vilfred Sikker <vilfredsikker@gmail.com>
Co-authored-by: Kasper <kasper@medusa-commerce.com>
Co-authored-by: Sebastian Rindom <skrindom@gmail.com>
Co-authored-by: Kasper Fabricius Kristensen <45367945+kasperkristensen@users.noreply.github.com>

package.json

@@ -32,6 +32,7 @@
     "bootstrap": "lerna bootstrap",
     "jest": "jest",
     "test": "jest",
+    "prettier": "prettier",
     "test:integration": "jest --config=integration-tests/jest.config.js --runInBand",
     "test:fixtures": "jest --config=docs-util/jest.config.js --runInBand"
   },