PEL: Update UserData parser example

Empty JSON dictionaries are ignored by the peltool code so put some data
in the example dictionary.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Ia52e590c4640e2ddd60c44eca25d260cc6f366c1
diff --git a/extensions/openpower-pels/README.md b/extensions/openpower-pels/README.md
index 7f9df1d..6252003 100644
--- a/extensions/openpower-pels/README.md
+++ b/extensions/openpower-pels/README.md
@@ -629,7 +629,7 @@
     import json
     def parseSRCToJson(ascii_str, word2, word3, word4, word5, word6, word7, \
                        word8, word9):
-        d = dict()
+        d = dict({'A': 1, 'B': 2})
         ...
         # Decode SRC data into dictionary
         ...