Update README.md

README.md

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 license: apache-2.0
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-Here is a inference demo on Colab.
-https://colab.research.google.com/drive/1B7lw5gyDu2i0AVXIDO7PNTryr8MoRGlO
+[Here](https://colab.research.google.com/drive/1xIfIVafnlCP2XVICmRwkUFK3cwTJYjCY#scrollTo=bG1ed2WQfoU0) is a inference demo on Colab.
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+Please note that openmoe-base is only a small, debugging-focused model and hasn't been extensively trained. Oftentimes, its output is not valid.   
+If you want to see a decent performance on QAs, please try the [openmoe-8b](https://huggingface.co/OrionZheng/openmoe-8B-chat)(with compute comparable to a 1.6B LLaMA), or the openmoe-34B version later.