Created SC1085 (markdown)

SC1085.md

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+## Did you forget to move the ;; after extending this case item?
+
+### Problematic code:
+
+```bash
+case $options in
+  foobar) echo foo ;; echo bar;;
+  *) echo unknown option ;;
+esac
+```
+
+### Correct code:
+
+```bash
+case $options in
+  foobar) echo foo ; echo bar;;
+  *) echo unknown option ;;
+esac
+```
+
+### Rationale:
+There should be no statements between `;;` and the next case item.