refactor(document): use template strings for error message re: code review

Author: vkarpov15

lib/document.js

@@ -1779,11 +1779,7 @@ Document.prototype.$__set = function(pathToMark, path, options, constructing, pa
 Document.prototype.$__getValue = function(path) {
   if (typeof path !== 'string' && !Array.isArray(path)) {
     throw new TypeError(
-      'Invalid `path`. Must be either string or array. Got "' +
-      path +
-      '" (type ' +
-      typeof path +
-      ')'
+      `Invalid \`path\`. Must be either string or array. Got "${path}" (type ${typeof path})`
     );
   }
   return utils.getValue(path, this._doc);