Refine data flow diagram

doc/data-flow.md

@@ -2,38 +2,38 @@
 
 ```mermaid
 flowchart TB
-    a0(config)
-    a1(auth)
+    conf(config)
+    auth(auth)
     c4k(c4k-website)
     sec(website-build-secret)
-    b(nginx-deployment\ninitContainer)
-    c(website-build-cron)
-    d(repo.prod.meissa.de)
-    e[(content-volume)]
-    f(nginx)
-    g((serve website))
-    h(website-user)
+    depl(nginx-deployment\ninitContainer)
+    cron(website-build-cron)
+    repo(repo.prod.meissa.de)
+    vol[(content-volume)]
+    nginx(nginx)
+    serve((serve website))
+    user(website-user)
     subgraph dockerImage
-        j((build website))
-        i((pull website repo))
+        build((build website))
+        pull((pull website repo))
         unpack((unpack website data))
         exec((execute scripts))
         if0{scripts exist}
-        i -- zip file --> unpack
+        pull -- zip file --> unpack
         unpack -- website data --> if0        
         if0 -- yes --> exec
-        exec -- modified\n website data--> j
-        if0 -- no\n unmodified website data --> j
+        exec -- modified\n website data--> build
+        if0 -- no\n unmodified website data --> build
     end
-    a0 -- configuration data --> c4k
-    a1 -- authorization data --> c4k
-    c4k -- container specific config &\n build specific env vars--> b & c
+    conf -- configuration data --> c4k
+    auth -- authorization data --> c4k
+    c4k -- container specific config &\n build specific env vars--> depl & cron
     c4k -- build specific secret env vars --> sec
-    sec -- secret env vars --> b & c
-    b & c -- environment vars\n from secret and c4k-website --> dockerImage
-    d -- build repo --> dockerImage
-    dockerImage -- website files --> e
-    e -- website files --> f
-    f -- website files --> g
-    g -- rendered page --> h
+    sec -- secret env vars --> depl & cron
+    depl & cron -- environment vars\n from secret and c4k-website --> dockerImage
+    repo -- build repo --> dockerImage
+    dockerImage -- website files --> vol
+    vol -- website files --> nginx
+    nginx -- website files --> serve
+    serve -- rendered page --> user
 ```