fix readme badge link

sandorfr · sandorfr · commit a0f3c60b007f · 2018-02-10T13:14:37.000+11:00
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-[![Visual Studio Marketplace](https://img.shields.io/vscode-marketplace/d/geeklearningio.graphviz-markdown-preview.svg)]()
+[![Visual Studio Marketplace](https://img.shields.io/vscode-marketplace/d/geeklearningio.graphviz-markdown-preview.svg)](https://marketplace.visualstudio.com/items?itemName=geeklearningio.graphviz-markdown-preview)
 
 Adds [GraphViz](http://www.graphviz.org/) support to VS Code's builtin markdown preview
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-[![Visual Studio Marketplace](https://img.shields.io/vscode-marketplace/d/geeklearningio.graphviz-markdown-preview.svg)]()`
	`1`	`+[![Visual Studio Marketplace](https://img.shields.io/vscode-marketplace/d/geeklearningio.graphviz-markdown-preview.svg)](https://marketplace.visualstudio.com/items?itemName=geeklearningio.graphviz-markdown-preview)`
`2`	`2`
`3`	`3`	`Adds [GraphViz](http://www.graphviz.org/) support to VS Code's builtin markdown preview`
`4`	`4`