fix(wysiwyg):Improve Wysiwyg editor

ts_web/elements/wysiwyg/instructions.md

@@ -1,4 +1,5 @@
-* We don't use lit template logic, but use static`` here to handle dom operations ourselves
+* We don't use lit html logic, no event binding, no nothing, but only use static`` here to handle dom operations ourselves
 * We try to have separated concerns in different classes
 * We try to have clean concise and managable code
-* lets log whats happening, so if something goes wrong, we understand whats happening.
+* lets log whats happening, so if something goes wrong, we understand whats happening.
+* Read https://developer.mozilla.org/en-US/docs/Web/API/Selection/getComposedRanges