* initial draft
* update dependences, add antd for layout (note yarn install needed her)
* update gallery to use mdx file format to support react components
* add custom react component for gallery with tag based filtering and url state management
* add styling for gallery objects
* add gallery data structure and default image
* improve layout for gallerypage
* revise Postgres demo
* add default value when image is not provided
* move semetic kernal to ecosystem
* update tags
* update tags
* update ecosystem
* update default fig
* update tags
* reformat
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Co-authored-by: “skzhang1” <“shaokunzhang529@gmail.com”>
Co-authored-by: Victor Dibia <victordibia@microsoft.com>
