Update README.md

README.md

 # apex
 
 Origin: nexus3.onap.org:10003/onap/policy-apex-pdp:2.5.3
+
+# Repo Token
+
+Token Name: **noc-apex**
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+Token: **eMftPYzgWrsk7szgsjW8**
+
+Usage: **docker login -u noc-apex -p eMftPYzgWrsk7szgsjW8 gitlab-registry.eps.surrey.ac.uk**