Intraday short trade opportunity

Price is moving in the upwards channel for some time and medium-long time trend is upwards. However, I see risk rewarding opportunity to enter counter trend trade for intraday traders. Channel's middle lane appears to be matching with fib resistance level. Looking at hourly chart, move up is getting exhausted and might be ready for correction. I would be looking to enter the trade with these parameters:

ENTRY: 1.7890-1.7900
STOP LOSS: 1.7950
TAKE PROFIT: 1.7750