diff --git a/.gitignore b/.gitignore
index 5747120..5682aab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,11 @@ _site/
 *.tfstate
 *.tfstate.backup
 
+# generated files:
+terragrunt/backend.tf
+terragrunt/provider.tf
+
+
 # Terragrunt
 .terragrunt-cache
 
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..90d88ba
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,8 @@
+"files.exclude": {
+  "_site": true,
+  ".jekyll-cache": true,
+  "node_modules": true,
+  "playwright-report": true,
+  "test-results": true
+}
+
diff --git a/Rakefile b/Rakefile
index e3242f4..a73dca4 100644
--- a/Rakefile
+++ b/Rakefile
@@ -41,7 +41,11 @@ task lint: :build do
   sh 'tflint --chdir terraform/website/ -c ../../.tflint.hcl'
 
   # HTML linting
-  options = { ignore_status_codes: [400] }
+  options = {
+    check_html: true,
+    check_external_hash: true
+  }
+
   HTMLProofer.check_directory('./_site', options).run
 end
 
diff --git a/credits.md b/credits.md
index 1f7de53..1581408 100644
--- a/credits.md
+++ b/credits.md
@@ -5,15 +5,15 @@ permalink: /credits/
 ---
 
 <p>
-    <a class="lnk" href="http://j4y.net/" data-proofer-ignore>Jay Prall</a><br />
+    <a class="lnk" href="https://j4y.net/">Jay Prall</a><br />
     author
 </p>
 
 <p>
-    <a class="lnk" href="http://kaidjuric.com/" data-proofer-ignore>Kajica Djuric</a><br />
+    Kajica Djuric<br />
 </p>
 
 <p>
     Raul Matei<br />
     new icon
-</p>
\ No newline at end of file
+</p>
diff --git a/terragrunt/terragrunt.hcl b/terragrunt/terragrunt.hcl
index d5b141c..7980c74 100644
--- a/terragrunt/terragrunt.hcl
+++ b/terragrunt/terragrunt.hcl
@@ -23,6 +23,7 @@ EOF
 }
 
 # Configure Terragrunt to store tfstate files in an S3 bucket
+# This ends up as the backend.tf:
 remote_state {
   backend = "s3"
   config = {