Update README.txt

added the line under examples

Author: randomrahulm

galleries/examples/README.txt

@@ -1,11 +1,12 @@
-For an overview of the plotting methods we provide, see :ref:`plot_types`
+
 .. _examples-index:
 
 .. _gallery:
 
 ========
 Examples
 ========
+For an overview of the plotting methods we provide, see :ref:`plot_types`
 
 This page contains example plots. Click on any image to see the full image
 and source code.