diff --git a/knowledge base/cicd pipeline.placeholder b/knowledge base/cicd pipeline.placeholder
new file mode 100644
index 0000000..6bb4d51
--- /dev/null
+++ b/knowledge base/cicd pipeline.placeholder	
@@ -0,0 +1,2 @@
+https://www.redhat.com/en/topics/devops/what-cicd-pipeline
+https://katalon.com/resources-center/blog/continuous-delivery-vs-continuous-deployment
diff --git a/knowledge base/dagger.placeholder b/knowledge base/dagger.placeholder
new file mode 100644
index 0000000..a66e405
--- /dev/null
+++ b/knowledge base/dagger.placeholder	
@@ -0,0 +1 @@
+https://github.com/dagger/dagger
diff --git a/knowledge base/renovatebot.placeholder b/knowledge base/renovatebot.placeholder
new file mode 100644
index 0000000..8da6e9c
--- /dev/null
+++ b/knowledge base/renovatebot.placeholder	
@@ -0,0 +1 @@
+https://github.com/renovatebot/renovate
diff --git a/knowledge base/reviewdog.placeholder b/knowledge base/reviewdog.placeholder
new file mode 100644
index 0000000..f7bfaf1
--- /dev/null
+++ b/knowledge base/reviewdog.placeholder	
@@ -0,0 +1 @@
+https://github.com/reviewdog/reviewdog