jeff: add eDSL and release notes blurbs

blog/2023-02-09-ghc-update-2023-02-09.md

@@ -82,7 +82,11 @@ See https://gitlab.haskell.org/ghc/ghc/-/merge_requests/9825
 
 ### JavaScript EDSL
 
-Jeff:
+Jeff: JavaScript eDSL based on
+[sunroof](https://github.com/ku-fpg/sunroof-compiler) close to MR, see
+[#22736](https://gitlab.haskell.org/ghc/ghc/-/issues/22736) for background.
+Compiler is complete. Major items left are: the interpreter to translate to
+`JStat`, filling in documentation, and testing now that CI has been merged.
 
 ### Blog posts
 
@@ -92,7 +96,12 @@ Sylvain: one about TH new implementation?
 
 ### Documentation
 
-Jeff: release notes mention
+Jeff: Wrote the JavaScript backend release notes. Notes pending
+[approval](https://gitlab.haskell.org/ghc/ghc/-/merge_requests/9828). We cite
+the [JavaScript
+backend](https://gitlab.haskell.org/ghc/ghc/-/wikis/javascript-backend) wiki
+page in the release notes. So Jeff and Sylvain heavily edited the wiki pages to
+make them suitable for external customers.
 
 Sylvain et al.: users guide chapter