InspectorAdvancedControls: Add README.md

[mcsf]

Part of #22891

Description

How has this been tested?

Screenshots

Types of changes

Checklist:

• My code is tested.
• My code follows the WordPress code style.
• My code follows the accessibility standards.
• My code has proper inline documentation.
• I've included developer documentation if appropriate.
• I've updated all React Native files affected by any refactorings/renamings in this PR.

[github-actions]

Size Change: +11.4 kB (0%)

Total Size: 1.19 MB

Filename	Size	Change
build/annotations/index.js	3.54 kB	+18 B (0%)
build/blob/index.js	668 B	+48 B (7%)	🔍
build/block-directory/index.js	8.55 kB	-58 B (0%)
build/block-editor/index.js	129 kB	-92 B (0%)
build/block-editor/style-rtl.css	10.9 kB	-42 B (0%)
build/block-editor/style.css	10.9 kB	-41 B (0%)
build/block-library/editor-rtl.css	8.65 kB	+48 B (0%)
build/block-library/editor.css	8.65 kB	+49 B (0%)
build/block-library/index.js	145 kB	+9.83 kB (6%)	🔍
build/block-library/style-rtl.css	7.66 kB	+3 B (0%)
build/block-library/style.css	7.65 kB	+3 B (0%)
build/block-serialization-default-parser/index.js	1.78 kB	+1 B
build/blocks/index.js	47.6 kB	+53 B (0%)
build/components/index.js	169 kB	+804 B (0%)
build/components/style-rtl.css	15.5 kB	+108 B (0%)
build/components/style.css	15.5 kB	+107 B (0%)
build/compose/index.js	9.43 kB	+6 B (0%)
build/core-data/index.js	12 kB	+9 B (0%)
build/data-controls/index.js	685 B	-585 B (85%)	🏆
build/data/index.js	8.6 kB	+189 B (2%)
build/date/index.js	31.9 kB	+1 B
build/edit-navigation/index.js	10.6 kB	-12 B (0%)
build/edit-post/index.js	306 kB	+246 B (0%)
build/edit-post/style-rtl.css	6.29 kB	+40 B (0%)
build/edit-post/style.css	6.28 kB	+43 B (0%)
build/edit-site/index.js	21 kB	+543 B (2%)
build/edit-site/style-rtl.css	3.73 kB	-53 B (1%)
build/edit-site/style.css	3.73 kB	-52 B (1%)
build/edit-widgets/index.js	21.2 kB	+122 B (0%)
build/edit-widgets/style-rtl.css	3.02 kB	+19 B (0%)
build/edit-widgets/style.css	3.02 kB	+20 B (0%)
build/editor/index.js	45.5 kB	+1 B
build/editor/style-rtl.css	3.85 kB	+17 B (0%)
build/editor/style.css	3.84 kB	+20 B (0%)
build/element/index.js	4.45 kB	+6 B (0%)
build/escape-html/index.js	734 B	+1 B
build/format-library/index.js	7.49 kB	+1 B
build/is-shallow-equal/index.js	710 B	+1 B
build/keyboard-shortcuts/index.js	2.39 kB	-4 B (0%)
build/list-reusable-blocks/index.js	3.02 kB	-3 B (0%)
build/media-utils/index.js	5.12 kB	-1 B
build/nux/index.js	3.27 kB	+1 B
build/priority-queue/index.js	790 B	+1 B
build/redux-routine/index.js	2.85 kB	-1 B
build/rich-text/index.js	13 kB	-3 B (0%)
build/server-side-render/index.js	2.6 kB	-1 B
build/shortcode/index.js	1.7 kB	+2 B (0%)
build/url/index.js	4.06 kB	+2 B (0%)
build/viewport/index.js	1.74 kB	+2 B (0%)
build/warning/index.js	1.14 kB	+6 B (0%)

ℹ️ View Unchanged

Filename	Size	Change
build/a11y/index.js	1.14 kB	0 B
build/api-fetch/index.js	3.35 kB	0 B
build/autop/index.js	2.72 kB	0 B
build/block-directory/style-rtl.css	943 B	0 B
build/block-directory/style.css	942 B	0 B
build/block-library/theme-rtl.css	741 B	0 B
build/block-library/theme.css	741 B	0 B
build/block-serialization-spec-parser/index.js	3.1 kB	0 B
build/deprecated/index.js	772 B	0 B
build/dom-ready/index.js	568 B	0 B
build/dom/index.js	4.42 kB	0 B
build/edit-navigation/style-rtl.css	868 B	0 B
build/edit-navigation/style.css	871 B	0 B
build/editor/editor-styles-rtl.css	492 B	0 B
build/editor/editor-styles.css	493 B	0 B
build/format-library/style-rtl.css	547 B	0 B
build/format-library/style.css	548 B	0 B
build/hooks/index.js	1.74 kB	0 B
build/html-entities/index.js	621 B	0 B
build/i18n/index.js	3.54 kB	0 B
build/keycodes/index.js	1.85 kB	0 B
build/list-reusable-blocks/style-rtl.css	476 B	0 B
build/list-reusable-blocks/style.css	476 B	0 B
build/notices/index.js	1.69 kB	0 B
build/nux/style-rtl.css	671 B	0 B
build/nux/style.css	668 B	0 B
build/plugins/index.js	2.44 kB	0 B
build/primitives/index.js	1.34 kB	0 B
build/token-list/index.js	1.24 kB	0 B
build/wordcount/index.js	1.17 kB	0 B

_{compressed-size-action}

[mkaz]

Can you switch the ES5 and ESNext code tabs so ESNext is showed first?

Per documentation here, ESNext is more common and preferred syntax to default to.

[mcsf]

Good point! Done in 18a9a78. /cc @mkaz

[ntsekouras]

Thanks! 👍

Feedback addressed