Improved example

Author: ankane

tests/typeorm.test.mjs

@@ -24,11 +24,12 @@ test('typeorm example', async () => {
         type: 'halfvec',
         length: 3
       },
-      // custom types not supported
-      // https://github.com/typeorm/typeorm/issues/10056
       binary_embedding: {
-        type: String
+        type: 'bit',
+        length: 3
       },
+      // custom types not supported
+      // https://github.com/typeorm/typeorm/issues/10056
       sparse_embedding: {
         type: String
       }