fixed reference to the upgrade kit

Author: kellytr

user-guide/01-getting-started/01-assembly_guides/01_pioreactor_20ml_v1.1/03-v11-wetware-assembly.md

@@ -33,7 +33,7 @@ The vial holder of the v1.1 comes in two halves; a top vial holder and a bottom
 <AssemblyInstructionBlock title="Step 2: Attach the window cover" images={["user-guide/hardware-assembly/upgrade-version/window-cover-parts.png", "user-guide/hardware-assembly/upgrade-version/window-screw.png"]}>
 
 1. Place the window cover over the window. It should fit snugly.
-2. Attach it using four <Highlight color={colors.red}>M2.5 4mm screws</Highlight> (2 provided in the upgrade kit, and 2 previously used in the old v1.0).
+2. Attach it using four <Highlight color={colors.red}>M2.5 4mm screws</Highlight>.
 
 </AssemblyInstructionBlock>