Update some snippets

snippets/capitalize.md

@@ -1,14 +1,16 @@
 ---
 title: capitalize
-tags: string
+tags: string,intermediate
 ---
+
 Capitalizes the first letter of a string.
 
-Capitalizes the first letter of the string and then adds it with rest of the string. Omit the `lower_rest` parameter to keep the rest of the string intact, or set it to `true` to convert to lowercase.
+Capitalize the first letter of the string and then add it with rest of the string. 
+Omit the `lower_rest` parameter to keep the rest of the string intact, or set it to `True` to convert to lowercase.
 
 ```py
 def capitalize(string, lower_rest=False):
-    return string[:1].upper() + (string[1:].lower() if lower_rest else string[1:])
+  return string[:1].upper() + (string[1:].lower() if lower_rest else string[1:])
 ```
 
 ```py

snippets/capitalize_every_word.md

@@ -1,14 +1,15 @@
 ---
 title: capitalize_every_word
-tags: string
+tags: string,beginner
 ---
+
 Capitalizes the first letter of every word in a string.
 
-Uses `str.title` to capitalize first letter of every word in the string.
+Use `string.title()` to capitalize first letter of every word in the string.
 
 ```py
 def capitalize_every_word(string):
-    return string.title()
+  return string.title()
 ```
 
 ```py

snippets/chunk.md

@@ -1,19 +1,21 @@
 ---
 title: chunk
-tags: list
+tags: list,intermediate
 ---
-Chunks an list into smaller lists of a specified size.
 
-Uses `range` to create a list of desired size. Then use `map` on this list and fill it with splices of `lst`.
+Chunks a list into smaller lists of a specified size.
+
+Use `list()` and `range()` to create a list of the desired `size`.
+Use `map()` on the list and fill it with splices of the given list.
+Finally, return use created list.
 
 ```py
 from math import ceil
 
-
 def chunk(lst, size):
-    return list(
+  return list(
-        map(lambda x: lst[x * size:x * size + size],
+    map(lambda x: lst[x * size:x * size + size],
-            list(range(0, ceil(len(lst) / size)))))
+      list(range(0, ceil(len(lst) / size)))))
 ```
 
 ```py

snippets/compact.md

@@ -1,14 +1,15 @@
 ---
 title: compact
-tags: list
+tags: list,beginner
 ---
+
 Removes falsey values from a list.
 
-Use `filter()` to filter out falsey values (False, None, 0, and "").
+Use `filter()` to filter out falsey values (`False`, `None`, `0`, and `""`).
 
 ```py
 def compact(lst):
-    return list(filter(bool, lst))
+  return list(filter(bool, lst))
 ```
 
 ```py

snippets/count_by.md

@@ -1,20 +1,20 @@
 ---
 title: count_by
-tags: list
+tags: list,intermediate
 ---
-:information_source: Already implemented via `collections.Counter`
 
 Groups the elements of a list based on the given function and returns the count of elements in each group.
 
-Use `map()` to map the values of the list using the given function. Iterate over the map and increase the the elements count each time it occurs.
+Use `map()` to map the values of the given list using the given function.
+Iterate over the map and increase the element count each time it occurs.
 
 ```py
 def count_by(arr, fn=lambda x: x):
-    key = {}
+  key = {}
-    for el in map(fn, arr):
+  for el in map(fn, arr):
-        key[el] = 0 if el not in key else key[el]
+    key[el] = 0 if el not in key else key[el]
-        key[el] += 1
+    key[el] += 1
-    return key
+  return key
 ```
 
 ```py