chore: add entry to changelog

Author: mcanouil

news/changelog-1.7.md

@@ -33,6 +33,7 @@ All changes included in 1.7:
 ## `html` format
 
 - ([#11860])(https://github.com/quarto-dev/quarto-cli/issues/11860)): ES6 modules that import other local JS modules in documents with `embed-resources: true` are now correctly embedded.
+- ([#10780])(https://github.com/quarto-dev/quarto-cli/issues/10780)): improve `link-external-filter` documentation/example to be more clear and correct.
 
 ## `pdf` format