Add new inplace tag

bot/resources/tags/in-place.md

@@ -0,0 +1,22 @@
+---
+embed:
+    title: "Out of place and in place"
+---
+
+In programming, there are two types of operations: "out of place" operations create a new object, leaving the original object unchanged. "in place" operations modify the original object without creating a new one, and return `None` explicitly.
+
+A common example of these different concepts is seen in the use of the methods `list.sort()` and `sorted(...)`. Using `list.sort()` and attempting to access an element of the list will result in an error.
+
+```py
+# WRONG:
+
+unsorted_list = [3, 1, 2]
+sorted_list = unsorted_list.sort()  # This will be None
+print(sorted_list)  # Outputs None. Where did the list go?
+
+list_to_sort = [3, 1, 2]
+sorted(list_to_sort)
+print(list_to_sort)  # The list still isn't sorted. Why?
+```
+
+To avoid these errors and unexpected results, you should either use an out-of-place operation `(sorted(...))` and assign it to a variable or use an in-place operation `(list.sort())` without assignment.