chore: add table to spec readme to help illustrate component coverage…

… and roadmap (#2994)

* chore: add table to spec readme to help illustrate component coverage and roadmap

* format table

specs/README.md

@@ -4,21 +4,23 @@ Here you'll find specifications for custom elements and other library features.
 
 > **Note:** When authoring a new spec, please use [our standard spec template](./template.md). Specs can be submitted in the form of a PR. Prior to creating a PR, be sure to remove any boilerplate from the spec template which was not used. The PR that introduces your spec should also add a link to this readme in the specs section below.
 
-## Specs
-- [Anchored Region](../packages/web-components/fast-components/src/anchored-region/anchored-region.spec.md)
-- [Badge](../packages/web-components/fast-components/src/badge/badge.spec.md)
-- [Card](../packages/web-components/fast-components/src/card/card.spec.md)
-- [Checkbox](../packages/web-components/fast-components/src/checkbox/checkbox.spec.md)
-- [Dialog](../packages/web-components/fast-components/src/dialog/dialog.spec.md)
-- [Flipper](../packages/web-components/fast-components/src/flipper/flipper.spec.md)
-- [Form associated custom elements](../packages/web-components/fast-components/src/form-associated/form-associated-custom-element.spec.md)
-- [Menu](./menu/menu.md)
-- [Number field](./number-field.md)
-- [Progress](../packages/web-components/fast-components/src/progress/progress.spec.md)
-- [Slider](../packages/web-components/fast-components/src/slider/slider.spec.md)
-- [Switch](../packages/web-components/fast-components/src/switch/switch.spec.md)
-- [Text Area](../packages/web-components/fast-components/src/text-area/text-area.spec.md)
-- [Text Field](../packages/web-components/fast-components/src/text-field/text-field.spec.md)
-- [Tooltip](./tooltip.md)
-- [Tree View](./tree-view/tree-view.md)
-- [Typography](./typography.md)
+## Web Component Specifications
+| Component | Completed |
+| :--------- | ---------: |
+| [Anchored Region](../packages/web-components/fast-components/src/anchored-region/anchored-region.spec.md) | :white_check_mark: |
+| [Badge](../packages/web-components/fast-components/src/badge/badge.spec.md) | :white_check_mark: |
+| [Card](../packages/web-components/fast-components/src/card/card.spec.md) | :white_check_mark: |
+| [Checkbox](../packages/web-components/fast-components/src/checkbox/checkbox.spec.md) | :white_check_mark: |
+| [Dialog](../packages/web-components/fast-components/src/dialog/dialog.spec.md) | :white_check_mark: |
+| [Flipper](../packages/web-components/fast-components/src/flipper/flipper.spec.md) | :white_check_mark: |
+| [Form associated custom elements](../packages/web-components/fast-components/src/form-associated/form-associated-custom-element.spec.md) | :white_check_mark: |
+| [Menu](./menu/menu.md) | -- |
+| [Number field](./number-field.md) | -- |
+| [Progress](../packages/web-components/fast-components/src/progress/progress.spec.md) | :white_check_mark: |
+| [Slider](../packages/web-components/fast-components/src/slider/slider.spec.md) | :white_check_mark: |
+| [Switch](../packages/web-components/fast-components/src/switch/switch.spec.md) | :white_check_mark: |
+| [Text Area](../packages/web-components/fast-components/src/text-area/text-area.spec.md) | :white_check_mark: |
+| [Text Field](../packages/web-components/fast-components/src/text-field/text-field.spec.md) | :white_check_mark: |
+| [Tooltip](./tooltip.md) | -- |
+| [Tree View](./tree-view/tree-view.md) | -- |
+| [Typography](./typography.md) | -- |