Add some settings to the config.

src/config/definition.rs

@@ -4,10 +4,17 @@ use serde::Serialize;
 /// This is the struct for the writer.toml config file that ends up in each site's root directory.
 #[derive(Deserialize, Serialize)]
 pub(crate) struct Config {
-    foo: String,
+    site_title: String,
+    author: Option<String>,
+    email: Option<String>,
 }
+
 impl Default for Config {
     fn default() -> Self {
-        Config { foo: "".to_owned() }
+        Config {
+            site_title: "My super awesome website".to_owned(),
+            author: None,
+            email: None,
+        }
     }
 }