Created SC2224 (markdown)

SC2224.md

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+## This mv has no destination. Check the arguments.
+
+### Problematic code:
+
+```sh
+mv "$file $dir"
+```
+
+### Correct code:
+
+```sh
+mv "$file" "$dir"
+```
+### Rationale:
+
+ShellCheck found an `mv` command with a single parameter. This may be because the source and destination was accidentally merged into a single argument, or because the line was broken in an invalid way.
+
+Fix the `mv` statement by correctly specifying both source and destination.
+
+### Exceptions:
+
+None