Issue #3 chore : Add .prettierrc & .npmignore

Author: alstn113

.npmignore

@@ -0,0 +1,13 @@
+node_modules
+yarn-error.log
+npm-debug.log
+npm-debug.log.*
+yarn-error.log
+yarn.lock
+.DS_Store
+.github
+.storybook
+.npmignore
+tsconfig.json
+.prettierrc
+rollup.config.js

.prettierrc

@@ -0,0 +1,10 @@
+{
+  "singleQuote": true,
+  "semi": true,
+  "useTabs": false,
+  "tabWidth": 2,
+  "trailingComma": "all",
+  "printWidth": 80,
+  "arrowParens": "always",
+  "endOfLine": "lf"
+}