added authentication among other things. considered working at this point.

templates/account/login.html

@@ -0,0 +1,9 @@
+{{ define "content" }}
+<h2>Login</h2>
+<form method="POST" action="/login">
+    {{ .csrfField }}
+    <label>Username: <input type="text" name="username" required></label><br>
+    <label>Password: <input type="password" name="password" required></label><br>
+    <button type="submit">Login</button>
+</form>
+{{ end }}