Introduce way to create redirects

Some board pages have incorrect names used in their URL. Introduce a way to create redirects for these incorrectly named pages.

Incomplete list of incorrect names:

- STM32L431C8T6-Green-Pill > STM32L431C**B**T6-Green-Pill
- All vcc-gnd.com boards
- "STM32H750VBT6 Generic Development Board" > Has same text on the back of the board as "中景园 (Zhongjingyuan) Board"