Add "How to implement" to README (#7)

* Add "How to implement" to README

* Fix headings, add list continuation to code blocks

* Move "How To Implement" to be before "How To Use"

* Remove duplicate docs and link to CNF-01 docs instead

* Change capitalization in titles

README.adoc

@@ -25,7 +25,11 @@ Maps are represented individually as key-value pairs like in Typesafe Config.
 
 Null values are not supported. Keys that have null values are not present in the resulting Map.
 
-== How to use
+== How to Implement
+
+See https://github.com/teragrep/cnf_01[CNF-01's documentation] for instructions on implementation.
+
+== How to Use
 
 // add instructions how people can start to use your project
 See https://github.com/teragrep/cnf_01[CNF-01's documentation] for using the library.