Render RFC templates in book (#585)

* Add RFC template to menu of the book. That way it renders in gitbook, rather than redirecting to github.
* Adding zh translation of RFC template to the book as well

Author: spier

book/en/toc.md

@@ -50,6 +50,7 @@ Instead edit toc_template.md
 * Extras
   * [README Template](../../patterns/2-structured/project-setup/templates/README-template.md)
   * [CONTRIBUTING Template](../../patterns/2-structured/project-setup/templates/CONTRIBUTING-template.md)
+  * [RFC Template](../../patterns/2-structured/templates/rfc.md)
 
 ## Resources
 

book/en/toc_template.md

@@ -27,6 +27,7 @@ Instead edit toc_template.md
 * Extras
   * [README Template](../../patterns/2-structured/project-setup/templates/README-template.md)
   * [CONTRIBUTING Template](../../patterns/2-structured/project-setup/templates/CONTRIBUTING-template.md)
+  * [RFC Template](../../patterns/2-structured/templates/rfc.md)
 
 ## Resources
 

book/zh/toc.md

@@ -47,6 +47,7 @@ Instead edit toc_template.md
 * 额外
   * [README 模板](../../translation/zh/templates/README-template.md)
   * [CONTRIBUTING 模板](../../translation/zh/templates/CONTRIBUTING-template.md)
+  * [RFC 模板](../../translation/zh/templates/rfc.md)  
 
 ## 资源
 

book/zh/toc_template.md

@@ -27,6 +27,7 @@ Instead edit toc_template.md
 * 额外
   * [README 模板](../../translation/zh/templates/README-template.md)
   * [CONTRIBUTING 模板](../../translation/zh/templates/CONTRIBUTING-template.md)
+  * [RFC 模板](../../translation/zh/templates/rfc.md)  
 
 ## 资源