fixed typo

Author: daniel-sanche

UPGRADING.md

@@ -15,4 +15,4 @@ The deprecated client will remain available as an alternative API surface, which
 If you experience technical issues or have questions, please file an [issue](https://github.com/googleapis/python-bigtable/issues).
 
 ## Breaking Changes
-- **[MutationBatcher](n-bigtable/blob/main/google/cloud/bigtable/data/_sync_autogen/mutations_batcher.py#L151) and [MutationBatcherAsync](https://github.com/googleapis/python-bigtable/blob/main/google/cloud/bigtable/data/_async/mutations_batcher.py#L182)'s `table` argument was renamed to `target`**, since it also supports [Authorized View](https://github.com/googleapis/python-bigtable/pull/1034) instances. This matches the naming used in other classes (PR: https://github.com/googleapis/python-bigtable/pull/1153)
+- **[MutationBatcher](https://github.com/googleapis/python-bigtable/blob/main/google/cloud/bigtable/data/_sync_autogen/mutations_batcher.py#L151) and [MutationBatcherAsync](https://github.com/googleapis/python-bigtable/blob/main/google/cloud/bigtable/data/_async/mutations_batcher.py#L182)'s `table` argument was renamed to `target`**, since it also supports [Authorized View](https://github.com/googleapis/python-bigtable/pull/1034) instances. This matches the naming used in other classes (PR: https://github.com/googleapis/python-bigtable/pull/1153)