Update the maximum number of entries that can be downloaded

rnacentral/portal/templates/portal/docs/public-database.md

@@ -83,7 +83,7 @@ URS00000A54A6	9606	OTTHUMT00000416802.1
 
 ## Example workflow to extract all bacterial rRNA sequences
 
-The RNAcentral text search can only export up to 250,000 search results.
+The RNAcentral text search can only export up to 1,000,000 search results.
 If you need to export more sequences, you can use the following workflow:
 
 1. Create a file `query.sql`: