Merge branch 'limitless-weight-value' into 'master'

Limitless weight value

See merge request gitlab-org/gitlab-ee!6211

doc/workflow/issue_weight.md

@@ -9,7 +9,9 @@ value or complexity a given issue has or will cost.
 
 You can set the weight of an issue during its creation, by simply changing the
 value in the dropdown menu. You can set it to a non-negative integer
-value from 0, 1, 2, and so on. You can remove weight from an issue
+value from 0, 1, 2, and so on. (The database stores a 4-byte value, so the 
+upper bound is essentially limitless).
+You can remove weight from an issue
 as well.
 
 This value will appear on the right sidebar of an individual issue, as well as