Mass-replace blurb with seo:description in frontmatter

content/infrastructure/testing-and-auditing/advance-the-ledger-in-stand-alone-mode.md

@@ -1,7 +1,8 @@
 ---
 html: advance-the-ledger-in-stand-alone-mode.html
 parent: use-stand-alone-mode.html
-blurb: Make progress in stand-alone mode by manually closing the ledger.
+seo:
+    description: Make progress in stand-alone mode by manually closing the ledger.
 labels:
   - Core Server
 ---

content/infrastructure/testing-and-auditing/index.md

@@ -3,7 +3,8 @@ html: use-stand-alone-mode.html
 parent: infrastructure.html
 metadata:
   indexPage: true
-blurb: For new features and experiments, you can use Stand-Alone Mode to test features with a full network.
+seo:
+    description: For new features and experiments, you can use Stand-Alone Mode to test features with a full network.
 ---
 # Testing and Auditing
 

content/infrastructure/testing-and-auditing/load-a-saved-ledger-in-stand-alone-mode.md

@@ -1,7 +1,8 @@
 ---
 html: load-a-saved-ledger-in-stand-alone-mode.html
 parent: use-stand-alone-mode.html
-blurb: Start in stand-alone mode from a specific saved ledger to test or replay transactions.
+seo:
+    description: Start in stand-alone mode from a specific saved ledger to test or replay transactions.
 labels:
   - Core Server
 ---

content/infrastructure/testing-and-auditing/run-private-network-with-docker.md

@@ -2,7 +2,8 @@
 html: private-network-with-docker.html
 name: Run a Private Network with Docker
 parent: use-stand-alone-mode.html
-blurb: Learn how to set up your own XRP private ledger network with Docker and Docker Compose.
+seo:
+    description: Learn how to set up your own XRP private ledger network with Docker and Docker Compose.
 labels:
   - Core Server
 ---

content/infrastructure/testing-and-auditing/start-a-new-genesis-ledger-in-stand-alone-mode.md

@@ -1,7 +1,8 @@
 ---
 html: start-a-new-genesis-ledger-in-stand-alone-mode.html
 parent: use-stand-alone-mode.html
-blurb: Start from a fresh genesis ledger in stand-alone mode.
+seo:
+    description: Start from a fresh genesis ledger in stand-alone mode.
 labels:
   - Core Server
 ---

content/infrastructure/testing-and-auditing/test-amendments.md

@@ -1,7 +1,8 @@
 ---
 html: test-amendments.html
 parent: use-stand-alone-mode.html # "Testing and Auditing"
-blurb: You can test proposed amendments before they're enabled on the network.
+seo:
+    description: You can test proposed amendments before they're enabled on the network.
 labels:
   - Blockchain
 ---