Update doc as relative import can be used with star import (GH-25667) (GH-26122)

(cherry picked from commit 3d4b5f1)

Co-authored-by: Saiyang Gou <[email protected]>

Co-authored-by: Saiyang Gou <[email protected]>

Author: miss-islington

Doc/reference/simple_stmts.rst

@@ -734,7 +734,7 @@ The :keyword:`!import` statement
               : ("," `identifier` ["as" `identifier`])*
               : | "from" `relative_module` "import" "(" `identifier` ["as" `identifier`]
               : ("," `identifier` ["as" `identifier`])* [","] ")"
-              : | "from" `module` "import" "*"
+              : | "from" `relative_module` "import" "*"
    module: (`identifier` ".")* `identifier`
    relative_module: "."* `module` | "."+