message: Fix some typos for the oss usage guide.
diff: @@ -4,7 +4,7 @@ OSS is an object storage service provided by Alibaba Cloud, see [here](https://w
  This module provides an extension that emulates a filesystem using the object storage service. The directory structures are encoded in object keys and file contents are stored in objects. The extension is implemented using [OSS C SDK](https://github.com/aliyun/aliyun-oss-c-sdk).
  -To use the extension, first get your OSS credential from [Alibaba OSS Service](https://www.alibabacloud.com/product/oss), includes:
  +To use the extension, first get your OSS credential from [Alibaba OSS Service](https://www.alibabacloud.com/product/oss), including:
  ```
  host = your_oss_cluster_host
  @@ -13,7 +13,7 @@ access_key = you_oss_access_key
  bucket = your_oss_bucket_name
  ```
  -In Python code, import the extension `ossfs_op` module to use the extension with `gfile`. The files and directory URI should have `oss://` prefix, followed by a oss bucket name, access_id, access_key, oss_host, then the directory hierarchy.
  +In Python code, import the extension `ossfs_op` module to use the extension with `gfile`. The files and directory URI should have `oss://` prefix, followed by an oss bucket name, access_id, access_key, oss_host, then the directory hierarchy.
  ```python
  import tensorflow_io.oss
  @@ -22,7 +22,7 @@ from tensorflow.python.platform import gfile
  gfile.MkDir('oss://${bucket}\x01id=${access_id}\x02key=${access_key}\x02host=${host}/test_dir')
  ```
  -With the extension installed, OSS files can be use with Dataset Ops, etc., in the same fashion as other files.
  +With the extension installed, OSS files can be used with Dataset Ops, etc., in the same fashion as other files.
  ```python
  dataset = tf.data.TextLineDataset(["oss://${bucket}\x01id=${access_id}\x02key=${access_key}\x02host=${host}/data_dir/file1"])
  @@ -30,4 +30,4 @@ dataset = tf.data.TextLineDataset(["oss://${bucket}\x01id=${access_id}\x02key=${
  ## Test
  -File `tests/test_oss.py` contains basic filesystem functionality tests. See `README.md` in root directory for more information about running tests. Make sure OSS credential has been set before running `pytest tests`. You can also just run the OSS test using `pytest tests/test_oss.py`
  \ No newline at end of file
  +File `tests/test_oss.py` contains basic filesystem functionality tests. See `README.md` in the root directory for more information about running tests. Make sure OSS credential has been set before running `pytest tests`. You can also just run the OSS test using `pytest tests/test_oss.py`
  