SDCORE-671: Adding gNB Simulator documentation

Change-Id: Ib65984c6efc2e4ce17d3f7814ee6b7084e05edb7
diff --git a/dict.txt b/dict.txt
index 60e5592..dae4039 100644
--- a/dict.txt
+++ b/dict.txt
@@ -74,3 +74,5 @@
 De
 testpod
 Minikube
+Deregister
+ransim