add build notifications

.drone.yml

@@ -1,10 +1,34 @@
 ---
 kind: pipeline
 type: docker
-name: default
+name: linux-build
 
 steps:
-- name: wow-ci
+- name: linux-build
   image: wow-dependencies:v1.0
   commands:
   - make -j2 release-static-linux-x86_64
+
+- name: discord linux notification
+  image: appleboy/drone-discord
+  settings:
+    webhook_id:
+      from_secret: discord_webhook_id
+    webhook_token:
+      from_secret: discord_webhook_token
+    message: Linux build {{build.number}} complete. {{build.link}} 
+  depends_on:
+    - linux-build
+
+- name: matrix linux notification
+  image: plugins/matrix
+  settings:
+    homeserver: https://matrix.org
+    roomid: tfuEmpojJyhMTMjNeN:matrix.org
+    username:
+      from_secret: matrix_username
+    password:
+      from_secret: matrix_password
+    template: Linux build {{build.number}} complete. {{build.link}}
+  depends_on:
+    - linux-build