docs/btree: Describe page caching policy of the underlying implementation.
docs/btree: Describe page caching policy of the underlying implementation.

trezor/micropython,Timmenem/micropython,kerneltask/micropython,adafruit/circuitpython,pramasoul/micropython,dmazzella/micropython,infinnovation/micropython,pfalcon/micropython,torwag/micropython,dmazzella/micropython,henriknelson/micropython,swegener/micropython,trezor/micropython,blazewicz/micropython,henriknelson/micropython,tralamazza/micropython,pfalcon/micropython,ryannathans/micropython,lowRISC/micropython,lowRISC/micropython,tralamazza/micropython,AriZuu/micropython,torwag/micropython,lowRISC/micropython,pramasoul/micropython,bvernoux/micropython,MrSurly/micropython-esp32,tobbad/micropython,swegener/micropython,pfalcon/micropython,kerneltask/micropython,MrSurly/micropython,ryannathans/micropython,MrSurly/micropython,tobbad/micropython,infinnovation/micropython,henriknelson/micropython,trezor/micropython,kerneltask/micropython,AriZuu/micropython,adafruit/micropython,pfalcon/micropython,micropython/micropython-esp32,tobbad/micropython,lowRISC/micropython,tobbad/micropython,ryannathans/micropython,pramasoul/micropython,adafruit/micropython,selste/micropython,MrSurly/micropython-esp32,tralamazza/micropython,swegener/micropython,adafruit/circuitpython,kerneltask/micropython,bvernoux/micropython,selste/micropython,MrSurly/micropython,torwag/micropython,blazewicz/micropython,ryannathans/micropython,pozetroninc/micropython,henriknelson/micropython,AriZuu/micropython,pfalcon/micropython,adafruit/circuitpython,dmazzella/micropython,pozetroninc/micropython,pozetroninc/micropython,micropython/micropython-esp32,adafruit/circuitpython,MrSurly/micropython-esp32,selste/micropython,trezor/micropython,ryannathans/micropython,micropython/micropython-esp32,pramasoul/micropython,pozetroninc/micropython,selste/micropython,adafruit/micropython,bvernoux/micropython,Timmenem/micropython,adafruit/circuitpython,pramasoul/micropython,adafruit/micropython,bvernoux/micropython,bvernoux/micropython,blazewicz/micropython,Timmenem/micropython,infinnovation/micropython,kerneltask/micropython,torwag/micropython,swegener/micropython,Timmenem/micropython,infinnovation/micropython,adafruit/circuitpython,trezor/micropython,MrSurly/micropython-esp32,MrSurly/micropython,infinnovation/micropython,adafruit/micropython,tralamazza/micropython,micropython/micropython-esp32,AriZuu/micropython,henriknelson/micropython,blazewicz/micropython,dmazzella/micropython,Timmenem/micropython,selste/micropython,lowRISC/micropython,MrSurly/micropython-esp32,pozetroninc/micropython,swegener/micropython,micropython/micropython-esp32,AriZuu/micropython,MrSurly/micropython,tobbad/micropython,blazewicz/micropython,torwag/micropython