docs(style-guide): Fix a couple typos

closes #2489

Author: meenie

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

@@ -245,7 +245,7 @@ a(href="#toc") Back to top
 
 .s-rule.do
   :marked
-    **Do** use give the filename the conventional suffix for a file of that type 
+    **Do** give the filename the conventional suffix for a file of that type 
     (e.g., `.component.ts`, `.directive.ts`, `.module.ts`, `.pipe.ts`, `.service.ts`).
 .s-why
   :marked
@@ -1319,7 +1319,7 @@ a(href="#toc") Back to top
 
 .s-rule.do
   :marked
-    **Do** export all symbols that from the `SharedModule` that other feature modules need to use.  
+    **Do** export all symbols from the `SharedModule` that other feature modules need to use.  
 
 .s-why
   :marked