jsut setting up

chapter21/11_header_user_partial.jade

@@ -0,0 +1,19 @@
+- if (session.user) {
+
+  p
+    span Hello 
+    span= session.user.name
+    span !
+  p
+    form(method="POST", action="/session")
+      input(type="hidden", name="_method", value="DELETE")
+      input(type="submit", value="Log out")
+
+- } else {
+
+  p
+    a(href="/session/new") Login
+    span  or 
+    a(href="/users/new") Register
+
+- }