Updated about us (#1327)

- Added CITATION file

CITATION

@@ -0,0 +1,8 @@
+@misc{pytorch-ignite,
+  author = {V. Fomin and J. Anmol and S. Desroziers and J. Kriss and A. Tejani},
+  title = {High-level library to help with training neural networks in PyTorch},
+  year = {2020},
+  publisher = {GitHub},
+  journal = {GitHub repository},
+  howpublished = {\url{https://github.com/pytorch/ignite}},
+}

assets/logo/ignite_logo_guidelines.md

@@ -1,5 +1,5 @@
 # PyTorch Ignite Logo Guidelines
-These guidelines are meant to help keep the PyTorch Ignite logo (as developed in #1221) consistent and recognizable across all its uses. They also provide a common language for referring to the logos and their components.
+These guidelines are meant to help keep the PyTorch Ignite logo (as developed in [#1221](https://github.com/pytorch/ignite/issues/1221)) consistent and recognizable across all its uses. They also provide a common language for referring to the logos and their components.
 
 The primary logo is the combination of the logomark and wordmark next to each other. The logomark is the flame alone (no text) and the wordmark is only the text. It's preferable to use the primary logo whenever possible, and the logomark when a smaller version is needed.
 

docs/source/about.rst

@@ -70,6 +70,10 @@ Acknowledgements
 We gratefully acknowledge the contributions of `all open-source developers <https://github.com/pytorch/ignite/graphs/contributors>`_
 who helped get this project off of the ground and supported the project.
 
+We especially appreciate amazing work of Isabela Presedo-Floyd `@isabela-pf <https://github.com/isabela-pf>`_  on project's logo,
+its `elaboration <https://github.com/pytorch/ignite/issues/1221>`_ and `guidelines <https://github.com/pytorch/ignite/blob/master/assets/logo/ignite_logo_guidelines.md>`_.
+Our new logos can be found `here <https://github.com/pytorch/ignite/tree/master/assets/logo>`_.
+
 We are also grateful to Soumith Chintala `@soumith <https://github.com/soumith>`_, Joe Spisak `@jspisak <https://github.com/jspisak>`_
 from Facebook for their help and to `PyTorch group <https://github.com/pytorch>`_ for infrastructure support
 (GPU CI and hosting of conda releases and our documentation).