[DOCS] Allow override for microservice image repo

Add documentation for the "imageRepositoryOveride"
parameter, which allows specifying an alternative
repository (registry) for the microservice image.

Issue-ID: OOM-2978
Signed-off-by: Jack Lucas <jflos@sonoris.net>
Change-Id: I8541de71841394ce514b0fe3c91b37d0082053dd
diff --git a/.gitignore b/.gitignore
index 3bbd496..94a90e3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,6 @@
 # IDEA intellij project files
 .idea/
 *.iml
+
+# VSCode file
+.vscode/