Update __init__.py

Author: fkiraly

src/hyperactive/opt/gfo/__init__.py

@@ -1,9 +1,9 @@
 """Optimizers from Gradient free optimizers package."""
 # copyright: hyperactive developers, MIT License (see LICENSE file)
 
-from hyperactive.opt.hillclimbing._hillclimbing import HillClimbing
-from hyperactive.opt.hillclimbing._repulsing import RepulsingHillClimbing
-from hyperactive.opt.hillclimbing._stochastic import StochasticHillClimbing
+from hyperactive.opt.gfo._hillclimbing import HillClimbing
+from hyperactive.opt.gfo._hillclimbing_repulsing import RepulsingHillClimbing
+from hyperactive.opt.gfo._hillclimbing_stochastic import StochasticHillClimbing
 
 __all__ = [
     "HillClimbing",