Adapters hints and explanations (refs #67, refs #24)

README.md

@@ -21,13 +21,20 @@ var log = require('gelf-pro');
 
 ### Adapters
 
+To provide predictable behaviour, all adapters do **NOT** re-use the socket connection.
+There are multiple ([1](https://github.com/kkamkou/node-gelf-pro/pull/68), [2](https://github.com/fdelayen/node-gelf-pro/commit/b52b4b6b1ff26772314b8673dd6fd724c0937caa)) variants available which you can borrow from (and create a new adapter).
+
 - UDP (with deflation and chunking)
   - Input: `GELF UDP`
 - TCP
   - Input: `GELF TCP` (with `Null frame delimiter`)
 - TCP via TLS(SSL)
   - Input: `GELF TCP` (with `Null frame delimiter` and `Enable TLS`)
 
+
+> *(hint)* withing more or less stable network (which is most likely) I would recommend using the "udp" adapter.    
+I would also recommend it for an average to high-loaded projects. For sensitive information "tcp-tls" adapter is recommended.
+
 ### Configuration
 ```javascript
 // simple