add getPrefix

Author: Francesca-Bit

lib/woqlClient.js

@@ -1183,11 +1183,16 @@ WOQLClient.prototype.getBranches = function (dbId) {
 };
 
 /**
- * get the database collections list
+ * get the database prefixes object
  * @param {string} [dbId] - the database id
  * @returns {Promise}  A promise that returns the call response object, or an Error if rejected.
  * @example
- * client.getBranches()
+ * client.getPrefixes()
+ * //return object example
+ * {
+ * '@base': 'terminusdb:///data/',
+ * '@schema': 'terminusdb:///schema#',
+ * '@type': 'Context'}
  */
 WOQLClient.prototype.getPrefixes = function (dbId) {
   if (dbId) this.db(dbId);