Add golang example to installation guide (#578)

Use --src instead of --code for Go example.

Documentation/docs-site/content/installation/installation.en.md

@@ -134,6 +134,19 @@ $ fission function test --name hello
 Hello, world!
 ```
 
+For a compiled language like Go:
+
+```sh
+$ fission env create --name go --image fission/go-env:0.6.0 --builder fission/go-builder:0.6.0
+
+$ curl -LO https://raw.githubusercontent.com/fission/fission/master/examples/go/hello.go
+
+$ fission function create --name gohello --env go --src hello.go --entrypoint Handler
+
+$ fission function test --name gohello
+Hello, world!
+```
+
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