Transition and configuration of Turing machine
Notations vary, but "$0, 1 \rightarrow R$" can be short for "$0 \rightarrow R$ and $1 \rightarrow R$."

A configuration is a way of writing the current state of the TM, the symbols on the tape and the current position of the tape. Here's a common way to write a configuration: if the state is $q_0$, the tape has $101$, and the head is pointing at $0$, write $1q_001$.