Prepare for 5.2.0 release

Signed-off-by: Adrian Reber <[email protected]>

Author: adrianreber

README.md

@@ -50,6 +50,7 @@ The following table shows the relation between go-criu and criu versions:
 
 | Major version  | Latest release | CRIU version |
 | -------------- | -------------- | ------------ |
+| v5             | 5.2.0          | 3.16         |
 | v5             | 5.0.0          | 3.15         |
 | v4             | 4.1.0          | 3.14         |