updated with open api yaml definition now with separate definitions for each BTC and LND

fixed several typos and corrections based on review feedback.
updated liquid version to match

Author: cjrutherford

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "yaml.schemas": {
+        "openapi:v3": "file:///home/cjrutherford/workspace/electrs/doc/electrs-rest-btcd-1.0.0.yaml"
+    }
+}