added vault builder from public tag documents

compose.yml

@@ -1,7 +1,6 @@
 services:
-  ccu-host:
+  app:
     build: 
-      # context: /home/venus/code/crimson-clinic/Dockerfile
       context: app
       args:
         - DEBUG_MODE=1
@@ -9,3 +8,9 @@ services:
       - '80:80'
     volumes:
       - ./content:/content
+  public_vault_builder:
+    build:
+      context: public_vault_builder
+    volumes: 
+      - ${obsidian_vault}:/vault
+      - ./public_vault:/content