[css-contain-3] Keep anchors working

Having incomping links to removed parts of the sections go to the
Changes section helps readers find where the text has gone.

See #10472

css-contain-3/Overview.bs

@@ -39,9 +39,13 @@ Security Considerations {#security}
 
 This appendix is <em>informative</em>.
 
-<h3 id="changes-2022-08">
+<h3 id="changes-2022-08"
+ oldids="contain-property, valdef-contain-inline-size, containment-types, containment-inline-size, inline-size-containment, example-3a756a36,
+ container-queries, example-13f6f0fa, example-c6405bc1, container-type, propdef-container-type, query-container, valdef-container-type-size, valdef-container-type-inline-size, valdef-container-type-normal, example-5708b886, example-2f40a692, container-name, propdef-container-name, valdef-container-name-none, valdef-container-name-custom-ident, example-44473254, container-shorthand, container-rule, container-query, typedef-container-condition, typedef-container-name, typedef-container-query, typedef-query-in-parens, typedef-style-query, typedef-style-in-parens, example-cba8e10c, example-b320e2d0, animated-containers, example-cfbdbffb, container-features, container-feature, size-container, container-size-query, size-features, typedef-size-feature, example-031e4923, example-5df63e7c, width, descdef-container-width, height, descdef-container-height, inline-size, descdef-container-inline-size, block-size, descdef-container-block-size, aspect-ratio, descdef-container-aspect-ratio, orientation, descdef-container-orientation, valdef-container-orientation-portra,it valdef-container-orientation-landsc,ape style-container, container-style-query, style-features, typedef-style-feature, container-lengths, container-query-length, example-a4252068, apis, the-csscontainerrule-interface, csscontainerrule, dom-csscontainerrule-containername, dom-csscontainerrule-containerquery
+ ">
 Changes since the 18 August 2022 Working Draft</h3>
 
+
  Significant changes since the <a href="https://www.w3.org/TR/2022/WD-css-contain-3-20220818/">18 August 2022 Working Draft</a> include: