* Initial docs for Qdrant Edge
* Qdrant Edge is not python library
* Anush' feedback
* Talk about 'loading a shard from disk' instead of 'creating a new shard from existing data'
* Talk about 'Edge Shards' instead of 'shards' and use EdgeShard class in code snippets
* Remove unnecessary styling
* review suggestions
* link to github examples + link to SA
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Co-authored-by: generall <andrey@vasnetsov.com>