Update README.md (#94)

Author: Kuassim

Diff for: java/AoJ/README.md

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 # AoJ: ADBA over JDBC
 
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+** 
+Please note that although this material is valid and can be closed/branched, the work on the ADBA project has been terminated.
+**
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 ADBA is Asynchronous Database Access, a non-blocking database access api that 
 Oracle is proposing as a Java standard. ADBA was announced at 
 [JavaOne 2016](https://static.rainfocus.com/oracle/oow16/sess/1461693351182001EmRq/ppt/CONF1578%2020160916.pdf)