Add .envrc that sets AOC_ROOT (for aoc.py)
Add .envrc that sets AOC_ROOT (for aoc.py)

robjwells/adventofcode-solutions,robjwells/adventofcode-solutions,robjwells/adventofcode-solutions,robjwells/adventofcode-solutions,robjwells/adventofcode-solutions,robjwells/adventofcode-solutions