Enron (#876)

* remove slack and wechat link

* add enron email dataset

README.md

@@ -75,4 +75,15 @@ ZincSearch has hundreds of production installations is in GA.
 
   Check the [contributing guide](./CONTRIBUTING.md) . Also check the [roadmap items](https://github.com/orgs/zinclabs/projects/3)
 
+# Examples
+
+You can use ZincSearch to index and search any data. Here are some examples that folks have created to index and search enron email dataset using zincsearch:
+
+1. https://github.com/jorgeloaiza48/Enron-Email-DataSet
+1. https://github.com/jhojanperlaza/email_search_engine
+1. https://github.com/carlosarraes/zinmail
+1. https://github.com/devjopa/golab-search
+1. https://github.com/avaco2312/zincsearch
+1. https://github.com/paolorossig/email-indexer
+