0.7.200708

Update README.md

0.7.200620-2

version 0.7.0 and

• fix compiler warnings
• new version number
• report Raspberry Pi Zero W revision number for Banana Pi M2 Zero

RPi.GPIO merged

Support BananaPi (and for Raspberry Pi)

• Merged with newest 0.7.0 Raspberry Pi version
• Debug messages not visible by default (use ENV 'RPIGPIO_DEBUG' for Level 1-4)
• Patch for gpiozero included to support Banana Pi Zero M2Z
• New samples even for gpiozero