fix typo

Author: jessesquires

README.md

@@ -135,7 +135,7 @@ Meanwhile, [`IGListKit`][0] is very imperative and mutable. With `IGListKit`, af
 
 `ReactiveCollectionsKit` improves upon the approach taken by both `ReactiveLists` and `IGListKit`, and removes or consolidates the boilerplate required by `IGListKit`.
 
-The [`CellViewModel`](https://jessesquires.github.io/ReactiveCollectionsKit/Protocols/CellViewModel.html) is the fundamental or "atomic" component in the library. It encapsulates all data, configuration, interaction, and registration for a single cell. This is similar to `ReactiveLists`. In `IGListKit`, this component corresponds to `IGListSectionController`. A shortcoming of `IGListKit` is that the "atomic" component is an entire section of multiple items — a section could have a single item and this scenario it more closely resembles `CellViewModel`.
+The [`CellViewModel`](https://jessesquires.github.io/ReactiveCollectionsKit/Protocols/CellViewModel.html) is the fundamental or "atomic" component in the library. It encapsulates all data, configuration, interaction, and registration for a single cell. This is similar to `ReactiveLists`. In `IGListKit`, this component corresponds to `IGListSectionController`. A shortcoming of `IGListKit` is that the "atomic" component is an entire section of multiple items — a section could have a single item and in this scenario it more closely resembles `CellViewModel`.
 
 The [`CollectionViewModel`](https://jessesquires.github.io/ReactiveCollectionsKit/Structs/CollectionViewModel.html) defines the entire structure of the collection. It is an immutable representation of your collection of data models, which can be anything. The "driver" terminology is borrowed from `ReactiveLists`. This component is more or less equivalent to the `IGListAdapter` found in `IGListKit`.