docs(style-guide): fix example on 02-04

closes #1452

Author: Foxandxss

public/docs/ts/latest/guide/style-guide.jade

@@ -326,7 +326,7 @@ a(href="#toc") Back to top
 
 .s-why
   :marked
-    **Why?** Clear service names such as `logger` do not require a suffix.
+    **Why?** Clear service names such as `Logger` do not require a suffix.
 
 .s-why.s-why-last
   :marked
@@ -359,7 +359,7 @@ table(width="100%")
     td
       code-example.
         @Injectable()
-        export class LoggerService {}
+        export class Logger {}
     td
       :marked
         logger.service.ts