Beginnings of documentation
Beginnings of documentation

pika/pika,jstnlef/pika,fkarb/pika-python3,reddec/pika,Zephor5/pika,renshawbay/pika-python3,Tarsbot/pika,vitaly-krugl/pika,zixiliuyue/pika,hugoxia/pika,benjamin9999/pika,shinji-s/pika,vrtsystems/pika,skftn/pika,knowsis/pika