Update upgrade-description files.

wiki/src/upgrade/v1/Tails/2.0.1/i386/alpha/upgrades.yml

+---
+build-target: i386
+channel: alpha
+product-name: Tails
+product-version: 2.0.1

wiki/src/upgrade/v1/Tails/2.0.1/i386/alpha/upgrades.yml.pgp

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wiki/src/upgrade/v1/Tails/2.0.1/i386/stable/upgrades.yml

+---
+build-target: i386
+channel: stable
+product-name: Tails
+product-version: 2.0.1

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