Updated SC1000: $ is not used specially and should therefore be escaped. (markdown)

SC1000.md

@@ -1,3 +1,13 @@
+# $ is not used specially and should therefore be escaped.
+
+### Problematic code:
+
+    echo "$"
+
+### Correct code:
+
+    echo "\$"
+
 ### Rationale:
 `$` is special in double quotes, but there are some cases where it's interpreted literally:
 
@@ -5,11 +15,3 @@
 2. In a context where the shell can't make sense of it, such as at the end of the string, (`"foo$"`) or before some constructs (`"$'foo'"`). 
 
 To avoid relying on strange and shell specific behavior, any `$` intended to be literal should be escaped with a backslash.
-
-### Problematic sample code:
-
-    echo "$"
-
-### Correct sample code:
-
-    echo "\$"