Update external/exchange-channels/asperaweb/asperaweb.md

external/exchange-channels/asperaweb/asperaweb.md

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+> AsperaWEB will be deprecated in the future (the end of service is planned for January 2023). LCSB File Transfer (LFT) will be used instead ([LFT quick guide](https://howto.lcsb.uni.lu/?exchange-channels:lft)).
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 ## Overview
 
 AsperaWEB is an IBM Aspera deployment at the LCSB-University of Luxembourg. AsperaWEB supports end-to-end encrypted data transfer and can handle high data volumes e.g. several tera bytes.