Created SC1142 (markdown)

SC1142.md

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+##  Use 'done < <(cmd)' to redirect from process substitution (currently missing one '<').
+
+### Problematic code:
+
+```sh
+sum=0
+while IFS="" read -r n
+do
+  (( sum += n ))
+done <(file) 
+```
+
+### Correct code:
+
+```sh
+sum=0
+while IFS="" read -r n
+do
+  (( sum += n ))
+done < <(file) 
+```
+### Rationale:
+
+ShellCheck found a `done` keyword followed by a process substitution, e.g. `done <(cmd)`.
+
+The intention was most likely to redirect from this process substitution, in which case you will need one extra `<`: `done < <(cmd)`.
+
+This is because `<(cmd)` expands to a filename (e.g. `/dev/fd/63`), and you need a `<` to redirect from filenames.
+   
+### Exceptions:
+
+None
+
+### Related resources:
+
+* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!