docs: add the 'since' tag to string.replace
@@ -2202,8 +2202,8 @@ are immutable, all operations return their results as a new string.
- `join(list_of_strings)`: the opposite of split, for example
`'.'.join(['a', 'b', 'c']` yields `'a.b.c'`.
-- `replace('old_substr', 'new_str')`: replaces instances of `old_substr` in the
- string with `new_str` and returns a new string
+- `replace('old_substr', 'new_str')` *(since 0.58.0)*: replaces instances of
+ `old_substr` in the string with `new_str` and returns a new string
- `split(split_character)`: splits the string at the specified
character (or whitespace if not set) and returns the parts in an
