Clean up open-source documentation for Samza SQL
Clean up open-source documentation for Samza SQL

abhishekshivanna/samza,apache/samza,prateekm/samza,lhaiesp/samza,lhaiesp/samza,lhaiesp/samza,lhaiesp/samza,lhaiesp/samza,abhishekshivanna/samza,prateekm/samza,bharathkk/samza,prateekm/samza,abhishekshivanna/samza,prateekm/samza,bharathkk/samza,abhishekshivanna/samza,apache/samza,abhishekshivanna/samza,bharathkk/samza,bharathkk/samza,bharathkk/samza,apache/samza,apache/samza,prateekm/samza,apache/samza