sql: Add a submodule with Greg Wilson's SQL via IPython notebooks

We're linking to the novice SQL lessons cherry-picked from
swcarpentry/bc's master branch [1].  The usual layout is
$subject/$tool, so maybe this should be sql/sqlite?  I find it hard to
imagine folks teaching SQL to novices without using SQLite though, so
I've skilled the per-tool repository.  It will be easy to add the
$tool directory if we *do* get someone teaching SQL with another tool.

[1]: https://github.com/swcarpentry/bc

diff --git a/.gitmodules b/.gitmodules
index 3ba560589707070ecb2ae4f0b692724140f3a731..09a28bf6b3360a41d1209da4ff41b3bb29d46b5e 100644 (file)
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "modular"]
        path = modular
        url = git://tremily.us/swc-modular.git
+[submodule "sql"]
+       path = sql
+       url = git://tremily.us/swc-sql.git

diff --git a/sql b/sql
new file mode 160000 (submodule)
index 0000000..660c10b
--- /dev/null
+++ b/sql
@@ -0,0 +1 @@
+Subproject commit 660c10b4c0526dfb19309e414841863859fb959c