Fix incorrect documentation of ratelimit.read.refill default

[wookie184]

The actual default config:

pinnwand/src/pinnwand/configuration.py

Lines 12 to 28 in 240f29d

	ratelimit = {
	"read": {
	"capacity": 100,
	"consume": 1,
	"refill": 2,
	},
	"create": {
	"capacity": 2,
	"consume": 2,
	"refill": 1,
	},
	"delete": {
	"capacity": 2,
	"consume": 2,
	"refill": 1,
	},
	}

The correct value is what's described above ("So the read bucket below allows a burst of a 100 reads then another 2 per second.") and used earlier in the file.

[supakeen]

Nice find. Thanks.