2021.8.0

• ENH: added LSU-138 to get-silva-data by @mikerobeson in #99
• MAINT: issue-98 : updated minimum qiime 2 version in docs by @mikerobeson in #100
• MAINT: removal of RESCRIPt RNA types, etc.. by @mikerobeson in #102
• ENH: add support for fetching protein seqs from NCBI by @misialq in #92
• MAINT: A couple of tweaks for get-ncbi-data by @BenKaehler in #101
• MAINT: add visualization gallery link by @misialq in #110
• BUG: set unresolved taxonomies to 'Unassigned' by @misialq in #114
• BUG: fix 'Taxon' column to always be first after merge by @misialq in #113
• ENH: reverse transcribe support for aligned RNA fasta by @nbokulich in #115
• ENH: replace-taxonomy action by @mikerobeson in #116
• CI: alpha library api tweaks by @thermokarst in #118