Downloads: Avoid using word 'Bootstrap' and change header to 'Import Blockchain'

_i18n/en.yml

@@ -147,8 +147,8 @@ downloads:
   choose: Choose your download
   gui: GUI Wallet
   cli: CLI Wallet
-  blockchain: Blockchain Bootstrap
-  blockchain1: If you'd prefer to use a blockchain bootstrap, instead of syncing from scratch, you can use the most current bootstrap. It is typically much faster to sync from scratch, however, and it also takes a lot less RAM.
+  blockchain: Import Blockchain
+  blockchain1: If you'd prefer to use a raw blockchain instead of syncing from scratch, you can use the most current bootstrap. It is typically much faster to sync from scratch, however, and it also takes a lot less RAM.
   blockchain2: If you wish to proceed anyway, take a look at the user guide
   blockchain3: Importing the Monero blockchain
   blockchain4: for step-by-step instructions for Windows.