chore: release 2.3.1 (#134)

🤖 I have created a release \*beep\* \*boop\*
---
### [2.3.1](https://www.github.com/googleapis/python-vision/compare/v2.3.0...v2.3.1) (2021-04-13)


### Documentation

* insert spaces between classes and methods in docs ([#133](https://www.github.com/googleapis/python-vision/issues/133)) ([1495241](https://www.github.com/googleapis/python-vision/commit/1495241f7f19098ba33412e5c6f98c76b0bedfb2))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

CHANGELOG.md

@@ -4,6 +4,13 @@
 
 [1]: https://pypi.org/project/google-cloud-vision/#history
 
+### [2.3.1](https://www.github.com/googleapis/python-vision/compare/v2.3.0...v2.3.1) (2021-04-13)
+
+
+### Documentation
+
+* insert spaces between classes and methods in docs ([#133](https://www.github.com/googleapis/python-vision/issues/133)) ([1495241](https://www.github.com/googleapis/python-vision/commit/1495241f7f19098ba33412e5c6f98c76b0bedfb2))
+
 ## [2.3.0](https://www.github.com/googleapis/python-vision/compare/v2.2.0...v2.3.0) (2021-03-31)
 
 

setup.py

@@ -19,7 +19,7 @@
 
 name = "google-cloud-vision"
 description = "Cloud Vision API API client library"
-version = "2.3.0"
+version = "2.3.1"
 release_status = "Development Status :: 5 - Production/Stable"
 dependencies = [
     "google-api-core[grpc] >= 1.22.2, < 2.0.0dev",