update paper link

README.md

@@ -1,6 +1,6 @@
 # Shap-E
 
-This is the official code and model release for Shap-E.
+This is the official code and model release for [Shap-E: Generating Conditional 3D Implicit Functions](https://arxiv.org/abs/2305.02463).
 
  * See [Usage](#usage) for guidance on how to use this repository.
  * See [Samples](#samples) for examples of what our text-conditional model can generate.

model-card.md

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 # Model Card: Shap-E
 
-This is the official codebase for running the latent diffusion models described in [Paper Link](https://openai.com). These models were trained and released by OpenAI. Following [Model Cards for Model Reporting (Mitchell et al.)](https://arxiv.org/abs/1810.03993), we're providing some information about how the models were trained and evaluated.
+This is the official codebase for running the latent diffusion models described in [Shap-E: Generating Conditional 3D Implicit Functions](https://arxiv.org/abs/2305.02463). These models were trained and released by OpenAI. Following [Model Cards for Model Reporting (Mitchell et al.)](https://arxiv.org/abs/1810.03993), we're providing some information about how the models were trained and evaluated.
 
 # Model Details