update doc strings

Author: nsajko

src/experimental.jl

@@ -7,7 +7,7 @@ export split_first, split_last, split_at, split_unaligned
 
 Return the first element of `v` and all other elements as a new memory view.
 
-This function will throw a `BoundsError` if `v` is empty.
+This function will throw a `LightBoundsError` if `v` is empty.
 
 See also: [`split_last`](@ref)
 
@@ -22,7 +22,9 @@ julia> split_first(v[1:1])
 (0x01, UInt8[])
 
 julia> split_first(v[1:0])
-ERROR: BoundsError: attempt to access 0-element MutableMemoryView{UInt8} at index [1]
+ERROR: LightBoundsErrors.LightBoundsError: out-of-bounds indexing: `collection[1]`, where:
+* `typeof(collection) == MutableMemoryView{UInt8}`
+* `axes(collection) == (Base.OneTo(0),)`
 [...]
 ```
 """
@@ -36,7 +38,7 @@ end
 
 Return the last element of `v` and all other elements as a new memory view.
 
-This function will throw a `BoundsError` if `v` is empty.
+This function will throw a `LightBoundsError` if `v` is empty.
 
 See also: [`split_first`](@ref)
 
@@ -51,7 +53,9 @@ julia> split_last(v[1:1])
 (0x01, UInt8[])
 
 julia> split_last(v[1:0])
-ERROR: BoundsError: attempt to access 0-element MutableMemoryView{UInt8} at index [1]
+ERROR: LightBoundsErrors.LightBoundsError: out-of-bounds indexing: `collection[1]`, where:
+* `typeof(collection) == MutableMemoryView{UInt8}`
+* `axes(collection) == (Base.OneTo(0),)`
 [...]
 ```
 """
@@ -66,7 +70,7 @@ end
 Split a memory view into two at an index.
 
 The first will contain all indices in `1:i-1`, the second `i:end`.
-This function will throw a `BoundsError` if `i` is not in `1:end+1`.
+This function will throw a `LightBoundsError` if `i` is not in `1:end+1`.
 
 # Examples
 ```jldoctest