Merge pull request JuliaCollections#135 from goggle/typos01

Correct some typos

Author: oscardssmith

docs/src/faq.md

@@ -40,7 +40,7 @@ A summary of major internal changes from 0.3 to 0.4 is as follows:
 - Nodes can now implement `nodevalue` which allows for distinction between values associated with
     the nodes and the nodes themselves.
 - All tree navigation is now based on "cursors".  A cursor provides the necessary information for
-    moving betweeen adjacent nodes of a tree.  Iterators now specify the movement among cursor
+    moving between adjacent nodes of a tree.  Iterators now specify the movement among cursor
     nodes.
 - Iterators now depend only on iterator states.  This is mostly for internal convenience and does not
     change the external API.

src/base.jl

@@ -236,7 +236,7 @@ StableNode{T}(𝒻, node)
 - `x`: the value of the constructed node, returned by [`nodevalue`](@ref).
 - `ch`: the children of the node, each must be of type `StableNode`.
 - `𝒻`: A function which, when called on the node of a tree returns a value which should be wrapped
-    by a `StableNode`.  The return value of `𝒻` must be convertable to `T` (see example).
+    by a `StableNode`.  The return value of `𝒻` must be convertible to `T` (see example).
 - `T`: The value type of the `StableNode`s in a tree.
 - `node`: A node from a tree which is to be used to construct the `StableNode` tree.