update form

Author: sfc-gh-hazhang

content/contact.md

@@ -10,7 +10,7 @@ summary: contact
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 Thank you for your interest in our lab at UC San Diego! If you work on machine learning and systems, and are interested in joining us, please [**read the page**](https://cseweb.ucsd.edu/~haozhang/prospective_student) on how to get involved. 
-In general, please first [**fill out this form**](https://forms.office.com/r/b9mBUG9yML). 
+In general, please first [**fill out this form**](https://forms.cloud.microsoft/r/RYpEJHqJgs). 
 After submitting the form, please drop an email to Prof. Hao Zhang ([email protected]).
 
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