index.md: Remove YAML front-matter

We're not building this stand-alone lesson as part of a larger Jekyll
site, so remove the YAML front-matter [1].

[1]: http://jekyllrb.com/docs/frontmatter/

diff --git a/index.md b/index.md
index aded47f2cfc9ddbdb24818913d53293b983cc0e3..c119362f72c21561fec3a9f3906b2f4186d5dc95 100644 (file)
--- a/index.md
+++ b/index.md
@@ -1,9 +1,3 @@
----
-layout: lesson
-root: ../..
-title: Using Databases and SQL
-level: novice
----
 Almost everyone has used spreadsheets,
 and almost everyone has eventually run up against their limitations.
 The more complicated a data set is,