Added API usage instructions

pages/root.go

@@ -15,6 +15,7 @@ type RootHandler struct {
 	index  *static.StaticContent
 	css    *static.StaticContent
 	favi   *static.StaticContent
+	usage  *static.StaticContent
 	submit *template.Template
 }
 
@@ -36,6 +37,9 @@ func (ctx *RootHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	case "/favicon.ico":
 		ctx.favi.ServeHTTP(w, r)
 
+	case "/api/usage.html":
+		ctx.usage.ServeHTTP(w, r)
+
 	case "/api/url":
 		ctx.ServeAPI(w, r)
 
@@ -73,7 +77,7 @@ func (ctx *RootHandler) Init() error {
 	}
 	ctx.css = css
 
-	// Initialize the static content object for the css
+	// Initialize the static content object favicon
 	favi := &static.StaticContent{Content: "favicon.ico"}
 	err = favi.Init()
 	if err != nil {
@@ -81,6 +85,14 @@ func (ctx *RootHandler) Init() error {
 	}
 	ctx.favi = favi
 
+	// Initialize the api usage instructions
+	usage := &static.StaticContent{Content: "usage.html"}
+	err = usage.Init()
+	if err != nil {
+		return err
+	}
+	ctx.usage = usage
+
 	// Initialize submit page template
 	ctx.submit = template.New("submit.html")
 	_, err = ctx.submit.Parse(string(static.Assets["submit.html"]))