Fix documentation typo for vision datasets (#150)

Co-authored-by: Christian <[email protected]>

Author: christiangnrd

src/datasets/vision/cifar10.jl

@@ -48,7 +48,7 @@ per class.
 # Arguments
 
 $ARGUMENTS_SUPERVISED_ARRAY
-- `split`: selects the data partition. Can take the values `:train:` or `:test`. 
+- `split`: selects the data partition. Can take the values `:train` or `:test`. 
 
 # Fields
 

src/datasets/vision/cifar100.jl

@@ -58,7 +58,7 @@ two `Vector{Int}`. The variables returned are the coarse label(s)
 # Arguments
 
 $ARGUMENTS_SUPERVISED_ARRAY
-- `split`: selects the data partition. Can take the values `:train:` or `:test`. 
+- `split`: selects the data partition. Can take the values `:train` or `:test`. 
 
 # Fields
 

src/datasets/vision/emnist.jl

@@ -50,7 +50,7 @@ at https://arxiv.org/abs/1702.05373v1.
 # Arguments
 
 - `name`: name of the EMNIST dataset. Possible values are: `:balanced, :byclass, :bymerge, :digits, :letters, :mnist`.
-- `split`: selects the data partition. Can take the values `:train:` or `:test`. 
+- `split`: selects the data partition. Can take the values `:train` or `:test`. 
 $ARGUMENTS_SUPERVISED_ARRAY
 
 # Fields

src/datasets/vision/mnist.jl

@@ -50,7 +50,7 @@ the 10 possible digits (0-9).
 # Arguments
 
 $ARGUMENTS_SUPERVISED_ARRAY
-- `split`: selects the data partition. Can take the values `:train:` or `:test`. 
+- `split`: selects the data partition. Can take the values `:train` or `:test`. 
 
 # Fields
 

src/datasets/vision/svhn2.jl

@@ -58,7 +58,7 @@ additional to use as extra training data.
 # Arguments
 
 $ARGUMENTS_SUPERVISED_ARRAY
-- `split`: selects the data partition. Can take the values `:train:`, `:test` or `:extra`. 
+- `split`: selects the data partition. Can take the values `:train`, `:test` or `:extra`. 
 
 # Fields