docs: add server object to element-definitions

docs/element-definitions.md

@@ -1118,6 +1118,53 @@ Data structure definition using Data Structure elements.
 - `"messageBody"` - Asset is an example of message-body
 - `"messageBodySchema"` - Asset is a schema for message-body
 
+### Server ([Object][])
+
+Subtype of [Object][] representing a server.
+
+#### Template
+
+- `element` - `"server"`
+- `attributes`
+    - `href` ([Templated Href][]) - URI Template for this server.
+    - `hrefVariables` ([Href Variables][]) - URI Template variables.
+
+#### Example
+
+```json
+{
+  "element": "server",
+  "meta": {
+    "description": {
+      "element": "string",
+      "content": "Description of the server."
+    }
+  },
+  "attributes": {
+    "href": {
+      "element": "string",
+      "content": "{basePath}://example.com/"
+    },
+    "hrefVariables": {
+      "element": "hrefVariables",
+      "content": [
+        {
+          "element": "member",
+          "content": {
+            "key": {
+              "element": "string",
+              "content": "basePath"
+            }
+          }
+        }
+      ]
+    }
+  },
+  "content": [
+  ]
+}
+```
+
 ### Resource
 
 The Resource representation with its available transitions and its data.
@@ -1289,7 +1336,8 @@ transitions.
 - `"dataStructures"` - Category is a set of data structures.
 - `"scenario"` - Category is set of steps.
 - `"transitions"` - Category is a group of transitions.
-- `"authSchemes"` - Category is a group of authentication and authorization scheme definitions
+- `"authSchemes"` - Category is a group of authentication and authorization scheme definitions.
+- `"servers"` - Category is a group of servers.
 
 #### Example