Rephrase instructions for exercise splitwhitespaces and some small fixes

subjects/appendrange/README.md

@@ -2,7 +2,7 @@
 
 ### Instructions
 
-Write a function that takes an `int` min and an `int` max as parameters. That function returns a slice of `int` with all the values between min and max.
+Write a function that takes an `int` min and an `int` max as parameters. That function returns a slice of `int`s with all the values between min and max.
 
 Min is included, and max is excluded.
 

subjects/makerange/README.md

@@ -3,7 +3,7 @@
 ### Instructions
 
 Write a function that takes an `int` min and an `int` max as parameters.
-That function returns a slice of `int` with all the values between min and max.
+That function returns a slice of `int`s with all the values between min and max.
 
 Min is included, and max is excluded.
 

subjects/printwordstables/README.md

@@ -2,9 +2,7 @@
 
 ### Instructions
 
-Write a function that prints the words of a `string` slice that will be returned by a function `SplitWhiteSpaces`.
-
-Each word is on a single line (each word ends with a `\n`).
+Write a function that receives a `string slice` and prints each element of the slice in one line.
 
 ### Expected function
 

subjects/splitwhitespaces/README.md

@@ -2,7 +2,7 @@
 
 ### Instructions
 
-Write a function that separates the words of a `string` and puts them in a `string` slice.
+Write a function that separates the words of a `string` and puts them in a `string slice`.
 
 The separators are spaces, tabs and newlines.