GitHub action and dependabot integration

Change-Id: I9ed38eaff04bafab399c5a4e23e9e68ac49950fc
diff --git a/.gitignore b/.gitignore
index af22e44..5e224ae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 .*
 !.gitignore
 !.dockerignore
+!.github
 testdata/sandbox
 examples/
 todo.txt
@@ -14,4 +15,6 @@
 \#*
 *.tar
 !/cmd/termmapper/
-!/cmd/koralmapper/
\ No newline at end of file
+!/cmd/koralmapper/
+*-plan.md
+overview.md
\ No newline at end of file