Add new configuration document for connection freshdesk (#102)

docs/reference/config-files/connection/freshdesk.md

@@ -0,0 +1,35 @@
+---
+title:  freshdesk
+sidebar_label: freshdesk
+---
+
+# freshdesk
+
+The `freshdesk` connection can be used to access Freshdesk resources.
+
+```hcl
+connection "freshdesk" "freshdesk_connection" {
+  api_key = "sk-jwgthNa..."
+  subdomain = "domain_name"
+}
+```
+
+## Arguments
+
+| Name            | Type    | Required?| Description
+|-----------------|---------|----------|-------------------
+| `api_key`       |  String | Optional | Freshdesk API key
+| `subdomain`     |  String | Optional | Freshdesk subdomain
+
+All arguments are optional, and a `freshdesk` connection with no arguments will behave the same as the [default connection](#default-connection).
+
+## Default Connection
+
+The `freshdesk` connection type includes an implicit, default connection (`connection.freshdesk.default`) that will be configured using the environment variables `FRESHDESK_API_KEY` and `FRESHDESK_SUBDOMAIN`.
+
+```hcl
+connection "freshdesk" "default" {
+  api_key = env("FRESHDESK_API_KEY")
+  subdomain = env("FRESHDESK_SUBDOMAIN")
+}
+```