add 0.3.2 to changelog

pages/docs/changelog.md

 # Changelog
 
+## 0.3.2
+
+- Allow connection endpoints for list nonterminals ([#21](https://git-st.inf.tu-dresden.de/jastadd/ragconnect/-/issues/21))
+- Ensure correct connect and disconnect functionality ([#31](https://git-st.inf.tu-dresden.de/jastadd/ragconnect/-/issues/31))
+- Enhance documentation ([#13](https://git-st.inf.tu-dresden.de/jastadd/ragconnect/-/issues/13), [#20](https://git-st.inf.tu-dresden.de/jastadd/ragconnect/-/issues/20), [#41](https://git-st.inf.tu-dresden.de/jastadd/ragconnect/-/issues/41))
+
 ## 0.3.1
 
 - Full support for incremental dependency tracking