add edit function

app/views/desktop/journal_pages/edit.html.erb

@@ -1,2 +1,3 @@
-<h1>Desktop::JournalPages#edit</h1>
-<p>Find me in app/views/desktop/journal_pages/edit.html.erb</p>
+<%= form_for @writing_journal, url: desktop_journal_page_path(@writing_journal)  do |f| %>
+  <%= render partial: 'desktop/journal_pages/form', locals: {:f => f} %>
+<%end%>

app/views/desktop/journal_pages/new.html.erb

@@ -1,3 +1,3 @@
-<%= form_for @writing_journal, url: desktop_journal_pages_path  do |f| %>
+<%= form_for @writing_journal, html: { multipart: true } , url: desktop_journal_pages_path  do |f| %>
   <%= render partial: 'desktop/journal_pages/form', locals: {:f => f} %>
 <%end%>