[guide] Fix no-interpolation template string example

The example showed a template string being used with no interpolation as "good". While it met the rule being described, it violated another rule for no reason.

Author: gburtini

README.md

@@ -565,7 +565,7 @@ Other Style Guides
 
     // good
     const foo = '\'this\' is "quoted"';
-    const foo = `'this' is "quoted"`;
+    const foo = `my name is '${name}'`;		
     ```
 
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