added example of configuring and embedded interpreter

examples/Embedding/embed_configured.py

@@ -0,0 +1,22 b''
+"""Quick snippet explaining how to set config options when embedding ipython."""
+
+# First create a config object from the traitlets library
+from traitlets.config import Config
+c = Config()
+
+# Now we can set options as we would in a config file: 
+#   c.Class.config_value = value
+# For, example, we can set the exec_lines option of the InteractiveShellApp
+# class to run some code when the IPython REPL starts
+c.InteractiveShellApp.exec_lines = [
+    'print("\\nimporting some things\\n")',
+    'import math',
+    "math"
+]
+c.InteractiveShell.colors = 'LightBG'
+c.InteractiveShell.confirm_exit = False
+c.TerminalIPythonApp.display_banner = False
+
+# Now we start ipython with our configurtion 
+import IPython
+IPython.start_ipython(config=c)