Fix broken link (#3343)

* Fix broken link

Fix broken link

* delete redundant tags

delete redundant tags

docs/home/contribute/stage-documentation-changes.md

@@ -64,7 +64,7 @@ web server:
         docker run -ti --rm -v "$PWD":/k8sdocs -p 4000:4000 gcr.io/google-samples/k8sdocs:1.1
 
 1. View your staged content at
-[http://localhost:4000](http://localhost:4000){: target="_blank"}.
+http://localhost:4000.
 
 ## Staging locally without Docker
 
@@ -88,7 +88,7 @@ web server:
         jekyll serve
 
 1. View your staged content at
-[http://localhost:4000](http://localhost:4000){: target="_blank"}.
+http://localhost:4000.
 
 <i>NOTE: If you do not want Jekyll to interfere with your other globally installed gems, you can use `bundler`:</i> 
  
@@ -96,7 +96,7 @@ web server:
  	bundle install
  	bundler exec jekyll serve
 
-<i> Regardless of whether you use `bundler` or not, your copy of the site will then be viewable at: [http://localhost:4000](http://localhost:4000)</i>
+<i> Regardless of whether you use `bundler` or not, your copy of the site will then be viewable at: http://localhost:4000</i>
 
 {% endcapture %}