The ornamental design for a container for kimchi, as shown and described.
1. Container for kimchi
1.1 : Perspective
1.2 : Front
1.3 : Left
1.4 : Top
1.5 : Bottom
Reproduction 1.1 is a front perspective view of the container for kimchi; reproduction 1.2 is a front view thereof where the back view is a mirror image; reproduction 1.3 is a left view thereof where the right view is a mirror image; reproduction 1.4 is a top view thereof; reproduction 1.5 is a bottom view thereof; this design is a container for kimchi with hinge structure fastening parts in left and right side, the upper part is made of transparent glass, and the user can see the inside.