Convert docdock theme from submodule to native files and fix Hugo compatibility

themes/docdock/exampleSite/content/shortcodes/button.md

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+title = "button"
+description = "Display an actionable button in your page."
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+
+Display an actionable button in your page.
+
+{{<button align="center" href="#" theme="warning" >}} This is a warning button {{< /button >}}
+
+## Usage 
+
+| Parameter | Default | Description |
+|:--|:--|:--|
+| href | "" | The location href to link to |
+| align | "center" | horizontal align button on page |
+| theme | `primary` | `default`, `primary` , `success`,`info`,`warning`,`danger` |
+
+The inner text you place in short code will be displayed as the _button text_
+
+## Demo
+
+	{{</* button href="https://google.com" */>}} go to google {{</* /button */>}}
+	{{</* button href="https://google.com" theme="success" */>}} Success {{</* /button */>}}
+	{{</* button href="https://google.com" theme="info" */>}} Info {{</* /button */>}}
+	{{</* button href="https://google.com" theme="warning" */>}} Warning {{</* /button */>}}
+	{{</* button href="https://google.com" theme="danger" */>}} Danger ! {{</* /button */>}}
+	{{</* button href="https://google.com" theme="default" */>}} Danger ! {{</* /button */>}}
+    
+{{<button href="https://google.com" >}} go to google {{< /button >}}
+{{<button href="https://google.com" theme="success">}} Success {{< /button >}}
+{{<button href="https://google.com" theme="info">}} Info {{< /button >}}
+{{<button href="https://google.com" theme="warning">}} Warning {{< /button >}}
+{{<button href="https://google.com" theme="danger">}} Danger ! {{< /button >}}
+{{<button href="https://google.com" theme="default">}} Danger ! {{< /button >}}
+
+
+