add module usage info to docs

jc/parsers/ss.py

@@ -1,9 +1,14 @@
 """jc - JSON CLI output utility ss Parser
 
-Usage:
+Usage (cli):
 
     specify --ss as the first argument if the piped input is coming from ss
 
+Usage (module):
+
+    import jc.parsers.ss
+    result = jc.parsers.ss.parse(ss_command_output)
+
 Limitations:
 
     Extended information options like -e and -p are not supported and may cause parsing irregularities