Rename templates to njk

It's specified in the nunjucks documentation.  Using it allows editors
to understand the syntax better

1 files changed, 0 insertions, 5 deletions

diff --git a/src/views/index.html b/src/views/index.html
deleted file mode 100644
index dcc142c..0000000
--- a/src/views/index.html
+++ /dev/null
@@ -1,5 +0,0 @@
-hello world
-
-{% for filename, post in posts %}
-  {{ post.data.get('title') }}
-{% endfor %}