Add some comments to the example low level api

Author: Oscar Franco

example/src/Database.ts

@@ -7,37 +7,31 @@ import { Buffer } from 'buffer';
 
 export const lowLevelInit = async () => {
   sqlite.open('test', 'sample/database');
+  // Just uncomment this methods to try the low level api of the library
+
+  // Creates a table in db
   // const result = sqlite.executeSql(
   //   'test',
   //   'CREATE TABLE "User" ( id INT PRIMARY KEY, name TEXT NOT NULL );',
   //   undefined
   // );
   // console.warn('tried to create table result', result);
+
+  // This is how you do a sync request
   // const result = sqlite.executeSql(
   //   'test',
   //   'INSERT INTO "User" (id, name) VALUES(?, ?)',
   //   [new Date().getMilliseconds(), `${new Date().getMilliseconds()}`]
   // );
 
-  const result = sqlite.executeSql('test', 'SELECT * FROM "User";', []);
-  console.warn('RESULT ', result);
+  // A simple select
+  // const result = sqlite.executeSql('test', 'SELECT * FROM "User";', []);
 
-  // sqlite.executeSql()
-  // console.warn('INSERTED DATA');
-  // sqlite
-  //   .asyncExecuteSql('test', 'SELECT * FROM "User";', [])
-  //   .then((asyncRes) => {
-  //     console.warn('asyncRes', asyncRes);
-  //   })
-  //   .catch((err) => {
-  //     console.warn('async error', err);
-  //   });
-  // sqlite.asyncExecuteSql('test', 'SELECT * FROM "User";', [], (asyncRes) => {
-  //   console.warn('asyncRes', asyncRes);
-  // });
-  // sqlite.asyncExecuteSql('test', 'SELECT * FROM "User";', [], (asyncRes) => {
-  //   console.warn('asyncRes2', asyncRes);
-  // });
+  // For more advanced use cases where you don't want to block the UI thread
+  // use async methods
+  sqlite.asyncExecuteSql('test', 'SELECT * FROM "User";', [], (asyncRes) => {
+    console.warn('asyncRes2', asyncRes);
+  });
 };
 
 export async function typeORMInit() {