01 - Place the chicken breasts in an even layer at 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 prevent washing off the seasonings.
04 - Cover the slow cooker and cook on low for 4 to 6 hours, or until the chicken is very tender and shreds easily when pierced with a fork.
05 - Using two forks, shred the chicken directly inside the slow cooker. Stir thoroughly so all the shredded pieces are well coated in the accumulated juices and seasonings.
06 - Warm the tortillas according to the package instructions until pliable.
07 - Fill each warm tortilla with the shredded ranch chicken, then top with shredded lettuce, diced tomatoes, cheddar cheese, sour cream, chopped cilantro, and a generous squeeze of fresh lime. Serve immediately.