Created SC1143 (markdown)

SC1143.md

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+## This backslash is part of a comment and does not continue the line.
+
+### Problematic code:
+
+```sh
+sed \
+  -e "s/HOST/$HOSTNAME/g"   \
+# -e "s/USER/$USER/g"       \
+  -e "s/ARCH/$(uname -m)/g" \
+  "$buildfile"
+```
+
+### Correct code:
+
+
+```sh
+sed \
+  -e "s/HOST/$HOSTNAME/g"   \
+  -e "s/ARCH/$(uname -m)/g" \
+  "$buildfile"
+
+# This comment is moved out:
+# -e "s/USER/$USER/g"       \
+```
+
+or using backticked, inlined comments:
+
+```sh
+sed \
+  -e "s/HOST/$HOSTNAME/g"   \
+`# -e "s/USER/$USER/g"`     \
+  -e "s/ARCH/$(uname -m)/g" \
+  "$buildfile"
+```
+
+(ShellCheck recognizes this idiom and does not suggest quotes or `$()`, neither of which would have worked)
+
+### Rationale:
+
+ShellCheck found a line continuation followed by a commented line that appears to try to do the same.
+
+Backslash line continuations are not respected in comments, and the line instead simply terminates. This is a problem when commenting out one line in a multi-line command like the example.
+
+Instead, either move the line away from its statement, or use an `` `# inline comment` `` in an unquoted backtick command substitution. 
+
+### Exceptions:
+
+None.
+
+### Related resources:
+
+* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!