Add POPL accept.

content/news.md

@@ -1,3 +1,5 @@
++ **11/2021** *A Separation Logic for Negative Dependence** to appear at **POPL
+  2022**.
 + **08/2021** This fall, I'm teaching a graduate seminar on **Foundations of
   Probabilistic Programming (CS 6182)**. Follow along [here](https://www.cs.cornell.edu/courses/cs6182/2021fa/)!
 + **07/2021** I'm happy to serve on the PC of **POPL 2022** and **PLDI 2022**.
@@ -18,16 +20,3 @@
   been selected as a **Distingiushed Paper** at **POPL 2021**!
 + **12/2020** **Learning Differentially Private Mechanisms** to appear at **S&P
   2021**.
-+ **10/2020** I was happy to present a tutorial on probabilistic couplings at
-  [**CMCS 2020**](https://www.coalg.org/cmcs20/). Slides are available
-  [here](https://justinh.su/files/slides/cmcs20-tutorial.pdf).
-+ **10/2020** **A Pre-Expectation Calculus for Probabilistic Sensitivity** to
-  appear at **POPL 2021**.
-+ **09/2020** This fall, I'm teaching a graduate seminar on **Security and
-  Privacy in Data Science (CS 763)**. Follow along
-  [here](https://pages.cs.wisc.edu/~justhsu/teaching/current/cs763/)!
-+ **07/2020** I was happy to give a talk at the [**Online Worldwide Seminar on
-  Logic and Semantics: Young Researcher
-  (OWLS-YR)**](https://www.cs.bham.ac.uk/~vicaryjo/owls/) on probabilistic
-  separation logic. Slides are available
-  [here](https://justinh.su/files/slides/owls-yr.pdf).