Add the rake tasks for search init

lib/tasks/search.rake

@@ -0,0 +1,21 @@
+,nit do
+  touch search-data.json
+
+  File.open('search-data.json', 'w') do |f|
+    f.puts '
+---
+---
+{
+  {% for page in site.html_pages %}"{{ forloop.index0 }}": {
+    "id": "{{ forloop.index0 }}",
+    "title": "{{ page.title | xml_escape }}",
+    "content": "{{ page.content | markdownify | strip_html | xml_escape | remove: 'Table of contents' | remove: page.title | strip_newlines | replace: '\', ' '}}",
+    "url": "{{ page.url | xml_escape }}"
+  }{% if forloop.last %}{% else %},
+  {% endif %}{% endfor %}
+}
+
+  end
+end'
+
+  end