DOC fixed typo in online_lda.py
@@ -412,7 +412,7 @@ class LatentDirichletAllocation(BaseEstimator, TransformerMixin):
Document word matrix.
total_samples : integer
- Total umber of documents. It is only used when
+ Total number of documents. It is only used when
batch_update is `False`.
batch_update : boolean
