Add fiddle example for MakeLinear

See live at https://fiddle.skia.org/c/4dbc499d0c9fdf7e732e512d90039acd

Change-Id: I06920e61b902c37c9c00ce3addd3e7cbf1c880bf
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/277602
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Mike Reed <reed@google.com>
diff --git a/tools/fiddle/all_examples.cpp b/tools/fiddle/all_examples.cpp
index 8f9967c..0563ed4 100644
--- a/tools/fiddle/all_examples.cpp
+++ b/tools/fiddle/all_examples.cpp
@@ -271,6 +271,7 @@
 #include "../../docs/examples/Fake_Bold.cpp"
 #include "../../docs/examples/Filter_Quality_Methods.cpp"
 #include "../../docs/examples/Font_breakText.cpp"
+#include "../../docs/examples/GradientShader_MakeLinear.cpp"
 #include "../../docs/examples/HSVToColor.cpp"
 #include "../../docs/examples/HSVToColor_2.cpp"
 #include "../../docs/examples/Hard_Light.cpp"