docs: improove inspector.js doc

Author: Fiero

lib/inspector.js

@@ -10,10 +10,10 @@ const modes = require('./modes.enum')
  * given value, then compare the raw value of NODE_ENV is returned
  *
  * @example <caption>with NODE_ENV="dev"</caption>
- * 	inspector() // return "dev"
- * 	inspector("test") // return false;
- * 	inspector("development") // return true;
- * 	inspector("dev") // return true;
+ * 	  inspector() // "dev"
+ * 	  inspector("test") // false;
+ * 	  inspector("development") // true;
+ * 	  inspector("dev") // true;
  *
  * @param {string} [env] environment to be tested
  * @return {boolean | string}