Fix escaping the licence string for PID 80A0

Author: peternewman

1209/80A0/index.md

@@ -2,8 +2,8 @@
 layout: pid
 title: ATMega-Z80 - an 8 bit hobby computer
 owner: SyMat
-license: Open source, permissive licenses. Software: BSD-3, Hardware: CERN-OHL-P.
+license: "Open source, permissive licenses. Software: BSD-3, Hardware: CERN-OHL-P."
 site: https://github.com/symat/atmega-z80
 source: https://github.com/symat/atmega-z80
 ---
-An open source hobby computer based on Z80 CPU and an ATMega MCU used for IO controller and other tasks. Check it out! ;)
+An open source hobby computer based on Z80 CPU and an ATMega MCU used for IO controller and other tasks. Check it out! ;)