Yes I see your issue. It isn't possible to tell where the jumpers are supposed to be from the drawing. You could label the pins something like j1-1 and j1-2 (for the two ends of jumper1) and j2-1 and j2-2 for the next one on silkscreen. That would help some but a resizable jumper would be better (but I don't think is an option currently). The other thing you may be able to do is change I/O port assignments (since the DHT22 seems to be one wire and only needs any port not SPI or I2C) to make routing easier. The temp sensor for instance could go to D13 on the micro without a jumper if that is acceptable (although I suspect it is analog as something appears to want an analog pin, in that case a trace between pins 22 RX and 23 TX would eliminate the jumper. ) and a single jumper would take the dht22 to pin D10 on the micro. That would mean software changes, but may be worth it to save pcb routing.
Peter