Move snippets in the correct folder

Related #188

snippets/includes_all.md

@@ -0,0 +1,21 @@
+---
+title: includes_all
+tags: utility,intermediate
+---
+
+Returns `True` if all the elements in `values` are included in `lst`, `False` otherwise.
+
+Check if every value in `values` is contained in `lst` using a `for` loop, returning `False` if any one value is not found, `True` otherwise.
+
+```py
+def includes_all(lst, values):
+  for v in values:
+    if v not in lst:
+      return False
+  return True
+```
+
+```py
+includes_all([1, 2, 3, 4], [1, 4]) # True
+includes_all([1, 2, 3, 4], [1, 5]) # False
+```