Created SC2286 (markdown)

SC2286.md

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+## This empty string is interpreted as a command name. Double check syntax (or use 'true' as a no-op).
+
+### Problematic code:
+
+```sh
+jq 
+   ''
+   file.json
+```
+
+### Correct code:
+
+```sh
+jq \
+  '' \
+  file.json
+```
+
+### Rationale:
+
+ShellCheck found an empty string used as a command name. This is never valid. 
+
+If the command is intended to do nothing, use `true` aka `:` instead. Otherwise, determine why an empty string ended up as a command name and fix it accordingly. In the example, each line was interpreted as a separate command due to missing line continuations. 
+
+### Exceptions:
+
+None
+
+### Related resources:
+
+* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!