Change order of modules

_data/course.yml

@@ -1,5 +1,5 @@
 title: Purl
-modules: [start, community, learning, feedback, content, tools]
+modules: [start, community, learning, content, feedback, tools]
 signups:
  - name: Dirk Uys
    image: https://pbs.twimg.com/profile_images/1789721843/7OGyxdxm_400x400

community/_posts/2000-01-02-tools.markdown

@@ -0,0 +1,5 @@
+---
+title: Community tools
+layout: course_page
+---
+# Tools for building community