DOCS: Migrated documentation website to Gitbook (#1809)

documentation/functions/domain/TLSA.md

@@ -0,0 +1,30 @@
+---
+name: TLSA
+parameters:
+  - name
+  - usage
+  - selector
+  - type
+  - certificate
+  - modifiers...
+parameter_types:
+  name: string
+  usage: number
+  selector: number
+  type: number
+  certificate: string
+  "modifiers...": RecordModifier[]
+---
+
+TLSA adds a TLSA record to a domain. The name should be the relative label for the record.
+
+Usage, selector, and type are ints.
+
+Certificate is a hex string.
+
+```javascript
+D("example.com", REGISTRAR, DnsProvider("GCLOUD"),
+  // Create TLSA record for certificate used on TCP port 443
+  TLSA("_443._tcp", 3, 1, 1, "abcdef0"),
+);
+```