minor fix on npm-package.jade

uncomment mixin for js docs.

Author: rexebin

public/_includes/_version-dropdown.jade

@@ -71,5 +71,5 @@ nav.dropdown
   <!-- DROPDOWN MENU -->
   div(class="dropdown-menu" ng-class="appCtrl.showMenu ? 'is-visible' : ''")
     mixin tree(public.docs.ts, "/docs/ts", "Angular 2 for TypeScript")
-    //- mixin tree(public.docs.js, "/docs/js", "Angular 2 for JavaScript")
+    mixin tree(public.docs.js, "/docs/js", "Angular 2 for JavaScript")
     //- mixin tree(public.docs.dart, "/docs/dart", "Angular 2 for Dart")

public/docs/ts/latest/guide/npm-packages.jade

@@ -362,7 +362,7 @@ a(id="why-peer-dependencies")
   it also installs the packages listed within *their* packages `dependencies` sections.
   The process is recursive.
 
-  当*npm*安装列在*我们的*`dependencies*区指定的包时，
+  当*npm*安装那些在*我们的*`dependencies*区指定的包时，
   它也会同时安装上在*那些包*的`dependencies`区所指定的那些包。
   这个安装过程是递归的。
 
@@ -389,7 +389,7 @@ a(id="why-peer-dependencies")
 
   It is our responsibility to list all *peer dependency* packages **among our own *devDependencies***.
 
-  我们的责任是，把所有*平级依赖*包都**列在我们自己的*devDependencies**中*。
+  我们的责任是，把所有*平级依赖*包都**列在我们自己的*devDependencies*中**。
 
 .l-sub-section
   :marked