Update explanations

Update explanation in digitize
Update explanation in delay
Update explanation in curry
Update explanation in compose_right
Update explanation in compose

snippets/compose.md

@@ -5,7 +5,7 @@ tags: function,intermediate
 
 Performs right-to-left function composition.
 
-Use `reduce()` to perform right-to-left function composition. 
+Use `functools.reduce()` to perform right-to-left function composition. 
 The last (rightmost) function can accept one or more arguments; the remaining functions must be unary.
 
 ```py

snippets/compose_right.md

@@ -5,7 +5,7 @@ tags: function,intermediate
 
 Performs left-to-right function composition.
 
-Use `reduce()` to perform left-to-right function composition. 
+Use `functools.reduce()` to perform left-to-right function composition. 
 The first (leftmost) function can accept one or more arguments; the remaining functions must be unary.
 
 ```py

snippets/curry.md

@@ -5,7 +5,7 @@ tags: function,intermediate
 
 Curries a function.
 
-Use `partial()` to return a new partial object which behaves like `fn` with the given arguments, `args`, partially applied.
+Use `functools.partial()` to return a new partial object which behaves like `fn` with the given arguments, `args`, partially applied.
 
 ```py
 from functools import partial
@@ -16,7 +16,7 @@ def curry(fn, *args):
 
 ```py
 add = lambda x, y: x + y
-add10 = curry(sum, 10)
+add10 = curry(add, 10)
 
 add10(20) # 30
 ```

snippets/delay.md

@@ -5,7 +5,7 @@ tags: function,intermediate
 
 Invokes the provided function after `ms` milliseconds.
 
-Use `sleep()` to delay the execution of `fn` by `ms / 1000` seconds.
+Use `time.sleep()` to delay the execution of `fn` by `ms / 1000` seconds.
 
 ```py
 from time import sleep

snippets/digitize.md

@@ -3,7 +3,7 @@ title: digitize
 tags: math,list,beginner
 ---
 
-Converts a number to an array of digits.
+Converts a number to a list of digits.
 
 Use `map()` combined with `int` on the string representation of `n` and return a list from the result.