Add reference to special symbols in text tutorial
@@ -141,6 +141,7 @@ fig.show()
# Advanced configuration
# ----------------------
#
-# For crafting more advanced styles, be sure to check out the GMT documentation
+# For crafting more advanced styles, including using special symbols and
+# other character sets, be sure to check out the GMT documentation
# at :gmt-docs:`text.html` and also the cookbook at
# :gmt-docs:`cookbook/features.html#placement-of-text`. Good luck!
