Added documentation to current Wiki Page event webhook

doc/web_hooks/web_hooks.md

@@ -695,6 +695,60 @@ X-Gitlab-Event: Merge Request Hook
 }
 ```
 
+## Wiki Page events
+
+Triggered when a wiki page is created or edited.
+
+**Request Header**:
+
+```
+X-Gitlab-Event: Wiki Page Hook
+```
+
+**Request Body**:
+
+```json
+{
+  "object_kind": "wiki_page",
+  "user": {
+    "name": "Administrator",
+    "username": "root",
+    "avatar_url": "http://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80\u0026d=identicon"
+  },
+  "project": {
+    "name": "awesome-project",
+    "description": "This is awesome",
+    "web_url": "http://example.com/root/awesome-project",
+    "avatar_url": null,
+    "git_ssh_url": "git@example.com:root/test-project.git",
+    "git_http_url": "http://example.com/root/awesome-project.git",
+    "namespace": "root",
+    "visibility_level": 0,
+    "path_with_namespace": "root/awesome-project",
+    "default_branch": "master",
+    "homepage": "http://example.com/root/awesome-project",
+    "url": "git@example.com:root/awesome-project.git",
+    "ssh_url": "git@example.com:root/awesome-project.git",
+    "http_url": "http://example.com/root/awesome-project.git"
+  },
+  "object_attributes": {
+    "title": "Awesome",
+    "content": "awesome content goes here",
+    "format": "markdown",
+    "message": "adding an awesome page to the wiki",
+    "slug": "awesome",
+    "url": "http://example.com/root/awesome-project/wikis/awesome",
+    "action": "create"
+  },
+  "repository": {
+    "name": "awesome-project",
+    "url": "git@example.com:root/awesome-project.git",
+    "description": "test",
+    "homepage": "http://example.com/root/awesome-project"
+  }
+}
+```
+
 #### Example webhook receiver
 
 If you want to see GitLab's webhooks in action for testing purposes you can use