Fixes gh-819 Document decimal module in lua.

pgulutzan · pgulutzan · commit efadaa69322f · 2019-07-22T15:25:05.000-06:00
diff --git a/doc/2.1/reference/reference_lua/index.rst b/doc/2.1/reference/reference_lua/index.rst
@@ -23,6 +23,7 @@ This reference covers Tarantool's built-in Lua modules.
     console
     crypto
     csv
+    decimal
     digest
     errno
     fiber

-Original file line number
+Diff line change
     console
     crypto
     csv
 +    decimal
     digest
     errno
     fiber