[Typo] Lables instead of labels

[Lunatik00]

in tensorflow_similarity/stores/memory_store.py there is a typo in the line 204 ''' data = { "embeddings": self.embeddings[:num_records], "data": self.data[:num_records], "lables": self.labels[:num_records], } '''

the string says lables instead of labels.

I decided to just report it instead of modifying the file because it might break functionality of a saved index.

[owenvallis]

Thanks for catching this. I pushed fixes as this was only in the to_dataframe method and shouldn't break any of the saved indexes.