Add uffizi to acknowledgements

fixes online-go#2682

README.md

@@ -7,6 +7,7 @@
 This repository contains the source code for web client used by [Online-Go.com](https://online-go.com).
 
 # Contributing
+
 Feel like making some changes? Excellent! See the [Contributing guide](./CONTRIBUTING.md).
 
 As a small token of appreciation for to those that help us out with code, if
@@ -20,16 +21,20 @@ Online-Go.com has a very active community of Go players, however only a
 relatively small portion of the community actively develops the code base and
 regularly visits this github page and the issue tracker. As such:
 
-* https://forums.online-go.com should be used to discuss any proposed functional changes or any new notable features, allowing non developers to chime in with their thoughts and ideas.
-* The [github issue tracker](https://github.com/online-go/online-go.com/issues) should be used to track all bugs, minor "obvious" enhancements, and accepted major enhancements. Any enhancements (and ideally bugs) posted need to be articulated in a way that it is obvious what needs to be done, partial thoughts will be closed and should be moved back to the forums for further discussion.
+-   https://forums.online-go.com should be used to discuss any proposed functional changes or any new notable features, allowing non developers to chime in with their thoughts and ideas.
+-   The [github issue tracker](https://github.com/online-go/online-go.com/issues) should be used to track all bugs, minor "obvious" enhancements, and accepted major enhancements. Any enhancements (and ideally bugs) posted need to be articulated in a way that it is obvious what needs to be done, partial thoughts will be closed and should be moved back to the forums for further discussion.
 
 # Utilizing the Website
+
 Online-go provides several resources that allows you to interact with the project to create your own. These resources help to get you started.
-* https://online-go.com/developer to access documentation.
-* https://github.com/online-go/online-go.com/wiki to get started and how to use the website.
-* https://ogs.docs.apiary.io/# for API documentation.
-* https://ogs.readme.io/docs/real-time-api for real time API documentation
-* https://online-go.com/oauth2/applications/ OAuth2 Application Manager (you must be signed into an account on OGS.)
-
-# Social Media
-[![Twitter Follow](https://img.shields.io/twitter/follow/onlinegoserver.svg?style=social&label=Follow)](https://twitter.com/onlinegoserver?lang=en)
+
+-   https://online-go.com/developer to access documentation.
+-   https://github.com/online-go/online-go.com/wiki to get started and how to use the website.
+-   https://ogs.docs.apiary.io/# for API documentation.
+-   https://ogs.readme.io/docs/real-time-api for real time API documentation
+-   https://online-go.com/oauth2/applications/ OAuth2 Application Manager (you must be signed into an account on OGS.)
+
+
+# Acknowledgements
+
+Thank you to [Uffizzi](https://www.uffizzi.com/) for providing ephemeral environments to preview pull requests.