Increased read time for Historic Weaponsmith

Had a copy of Robots for Fun and Profit and a copy of The Historic Weaponsmith in my inventory.

Both raised a crafting skill from 5 to 10, but the Robots book was larger, heavier, required a higher intelligence, and -- most notably -- took 55 minutes to read. The Historic Weaponsmith had a mere 10 minutes read time which is on par with amateur primers rather than master-skill texts.

Increases read time of Historic Weaponsmith to 55 minutes, to match Robots for Fun and Profit.