01 - Place the chicken breasts in an even layer across the bottom of the slow cooker.
02 - Sprinkle the ranch seasoning and taco seasoning evenly over the top of the chicken.
03 - Pour the chicken broth around the sides of the chicken rather than directly on top, to keep the seasonings from washing off.
04 - Cover and cook on low for 4 to 6 hours, until the chicken is very tender and shreds apart easily with a fork.
05 - Using two forks, shred the chicken directly in the slow cooker. Stir well so the shredded meat absorbs the juices and seasonings.
06 - Warm the tortillas according to the package instructions.
07 - Fill each tortilla with the shredded ranch chicken, then top with lettuce, tomatoes, cheddar cheese, sour cream, cilantro, and a squeeze of fresh lime. Serve immediately.