[Docs] minor spelling fix to mount, shallow, findWhere

Author: hstoebel

docs/api/ReactWrapper/findWhere.md

@@ -1,6 +1,6 @@
 # `.findWhere(fn) => ReactWrapper`
 
-Finds every node in the render tree that return true for the provided predicate function.
+Finds every node in the render tree that returns true for the provided predicate function.
 
 
 #### Arguments

docs/api/ShallowWrapper/findWhere.md

@@ -1,6 +1,6 @@
 # `.findWhere(fn) => ShallowWrapper`
 
-Finds every node in the render tree that return true for the provided predicate function.
+Finds every node in the render tree that returns true for the provided predicate function.
 
 
 #### Arguments

docs/api/mount.md

@@ -63,7 +63,7 @@ describe('<Foo />', () => {
 Find every node in the render tree that matches the provided selector.
 
 #### [`.findWhere(predicate) => ReactWrapper`](ReactWrapper/findWhere.md)
-Find every node in the render tree that return true for the provided predicate function.
+Find every node in the render tree that returns true for the provided predicate function.
 
 #### [`.filter(selector) => ReactWrapper`](ReactWrapper/filter.md)
 Remove nodes in the current wrapper that do not match the provided selector.

docs/api/shallow.md

@@ -62,7 +62,7 @@ is not called on the component, and `componentDidUpdate` is not called after
 Find every node in the render tree that matches the provided selector.
 
 #### [`.findWhere(predicate) => ShallowWrapper`](ShallowWrapper/findWhere.md)
-Find every node in the render tree that return true for the provided predicate function.
+Find every node in the render tree that returns true for the provided predicate function.
 
 #### [`.filter(selector) => ShallowWrapper`](ShallowWrapper/filter.md)
 Remove nodes in the current wrapper that do not match the provided selector.