Add CodiMD OCA (#249)

* Add CodiMD yaml & png

* Run Prettier on yaml

* Implement feedback (@githubsaturn)

public/v4/apps/codimd.yml

@@ -0,0 +1,49 @@
+captainVersion: 4
+services:
+    $$cap_appname-mariadb:
+        image: linuxserver/mariadb:110.4.14mariabionic-ls77
+        environment:
+            MYSQL_ROOT_PASSWORD: $$cap_DB_PASS
+            MYSQL_DATABASE: codimd
+            MYSQL_USER: codimd
+            MYSQL_PASSWORD: $$cap_DB_PASS
+            PGID: 1000
+            PUID: 1000
+            TZ: Europe/London
+        volumes:
+            - $$cap_appname-mariadb-config:/config
+    $$cap_appname:
+        environment:
+            DB_HOST: srv-captain--$$cap_appname-mariadb
+            DB_USER: codimd
+            DB_PASS: $$cap_DB_PASS
+            DB_NAME: codimd
+            DB_PORT: 3306
+            PGID: 1000
+            PUID: 1000
+            TZ: Europe/London
+        image: linuxserver/codimd:1.6.0-ls44
+        restart: always
+        volumes:
+            - $$cap_appname-config:/config
+        caproverExtra:
+            containerHttpPort: '3000'
+caproverOneClickApp:
+    variables:
+        - label: Database Password
+          description: Password to connect to the database
+          defaultValue: $$cap_gen_random_hex(16)
+          id: $$cap_DB_PASS
+    instructions:
+        start: |-
+            Realtime collaborative markdown notes on all platforms.
+
+            GitHub: https://github.com/hackmdio/codimd
+        end: |-
+            Aaaand you're done! 😄
+
+            Your service is available as $$cap_appname
+    displayName: CodiMD
+    isOfficial: true
+    description: Realtime collaborative markdown notes on all platforms
+    documentation: https://hackmd.io/c/codimd-documentation