Add PoC documentation

Issue-ID: INT-1887
Signed-off-by: Krystian Kedron <k.kedron@partner.samsung.com>
Change-Id: I4d86199f0904f839e7e1c590485fb0fcb18b8780
diff --git a/.gitignore b/.gitignore
index 35a76c2..4e5e3fb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -79,3 +79,4 @@
 .apt_generated_test/
 
 !operations/a1-pe-sim-packages/resources/oran-sim-cba/Templates/k8s-profiles
+!doc/files