reference line joining in the header of our command documentation
@@ -4,4 +4,5 @@ braces (`{}`). The syntax for commands depends on the specific command.
Within the body of a template, any text within Soy tags is parsed and understood
by the compiler, while anything outside of Soy tags is raw text that is output
-which can be modified by Soy's [textual commands](textual-commands.md).
+which can be modified by Soy's [textual commands](textual-commands.md) and
+[line joining algorithm](textual-commands.md#line-joining).
