feat: adding try catch code

index.js

@@ -1,7 +1,12 @@
 const { readFile } = require('./utils/converter')
 
 const add = async (path) => {
-  return  await readFile(`${path}`)
+  try {
+    if (typeof path !== 'string') throw new Error('path have to be an string')
+    return  await readFile(`${path}`)
+  } catch (e) {
+    throw new Error(e.message)
+  }
 }
 
 module.exports = add