docs(book): remove math

amejiarosario · amejiarosario · commit 4f7f3833259b · 2019-06-22T09:44:55.000-04:00
diff --git a/book/config b/book/config
@@ -1 +1 @@
-Subproject commit ca372d2e9e00db369453488216c2dd2c081865d3
+Subproject commit ef08070ad119d9726e4c2f36a98d2d164961e281
