Add citations

CITATION.cff

@@ -0,0 +1,15 @@
+date-released: 2023-02
+title: "DevFormer: A Symmetric Transformer for Context-Aware Device Placement"
+message: "If you use this software, please cite it using the metadata from this file."
+url: "https://github.com/kaist-silab/DPPBench"
+authors:
+- family-names: Kim
+  given-names: Haeyeon
+- family-names: Kim
+  given-names: Minsu
+- family-names: Berto
+  given-names: Federico
+- family-names: Kim
+  given-names: Joungho
+- family-names: Park
+  given-names: Jinkyoo

README.md

@@ -91,3 +91,16 @@ Most radical modifications are not supported in Streamlit, so we hack our way an
 
 ### Deploy the app
 There are many ways to deploy the app, among which on our own server. However, Streamlit provides a [free hosting service](https://docs.streamlit.io/streamlit-cloud/get-started/deploy-an-app) that is sufficient for our purposes. To deploy the app, simply follow the instructions there or click the "deploy" button after running the app locally!
+
+---
+### Cite us
+
+If you find this repository useful, please consider citing our paper:
+
+```
+@article{kim2023devformer,
+  title={DevFormer: A Symmetric Transformer for Context-Aware Device Placement},
+  author={Kim, Haeyeon and Kim, Minsu and Berto, Federico and Kim, Joungho and Park, Jinkyoo},
+  year={2023},
+}
+```