Updated Notify_email (markdown)

Notify_email.md

@@ -85,5 +85,30 @@ Send a email notification to our hotmail account:
 # It's really easy if you're using a built in provider
 # Built-In providers look after handling the little details such as
 # the SMTP server, port, enforcing a secure connection, etc
-apprise mailto:///example:mypassword@hotmail.com
+apprise -t "Test Message Title" -b "Test Message Body" \
+    mailto:///example:mypassword@hotmail.com
+
+# Send an email to a custom provider:
+# Assuming the {domain} is example.com
+# Assuming the {userid} is george
+# Assuming the {password} is pass123
+apprise -t "Test Message Title" -b "Test Message Body" \
+   mailto://george:pass123@example.com
+
+# The above URL could also have been written like:
+#  mailto://example.com?user=george&password=pass123
+
+# In some cases, the {userid} is an email address.  In this case
+# you can place this information in the URL parameters instead:
+# Assuming the {domain} is example.com
+# Assuming the {userid} is george@example.com
+# Assuming the {password} is pass123
+apprise -t "Test Message Title" -b "Test Message Body" \
+   "mailto://example.com?user=george@example.com&password=pass123"
+
+# Note that the ampersand (&) that is used in the URL to separate
+# one argument from another is also interpreted by the CLI as
+# run in the background.  So to make sure the URL sticks together
+# and your terminal doesn't break your URL up, make sure to wrap
+# it in quotes!
 ```