template_dir option was forgotten in documentation plus recurse in directory added

rebar.config.sample

@@ -128,7 +128,8 @@
 %% Paths to miscellaneous Erlang files to compile for an app
 %% without including them in its modules list
 {extra_src_dirs, []}.
-
+%% Path where custom rebar3 templates could be found
+{template_dir, []}.
 
 %% == EDoc ==
 

src/rebar_templater.erl

@@ -326,7 +326,7 @@ find_other_templates(State) ->
         undefined ->
             [];
         TemplateDir ->
-            rebar_utils:find_files(TemplateDir, ?TEMPLATE_RE)
+            rebar_utils:find_files(TemplateDir, ?TEMPLATE_RE, true) % recursive
     end.
 
 %% Fetch template indexes that sit on disk in plugins