docs: remove excess files from diagram autogeneration and disable titles in generated diagrams

.github/workflows/autoupdate-structurizr-diagrams.yml

@@ -28,7 +28,8 @@ jobs:
           cd 'docs/diagrams'
           echo 'Generating PNGs...'
           plantuml -tpng *.puml
-          rm *.puml
+          # plantuml outputs .puml markup and key images that are not needed 
+          rm *.puml *-key.png
       - name: Get output branch for branch name
         id: get-branch-name
         shell: bash

docs/howto/set-up-landscape-server-in-wsl.md

@@ -94,5 +94,5 @@ Landscape server automatically.
 Using this server setup when following the [tutorial](../tutorial/index) would
 result in the following architecture:
 
-![text](../diagrams/structurizr-Tutorial.png) 
+![architecture diagram showing management of WSL instances from a WSL instance on a single machine using Landscape and Ubuntu Pro for WSL](../diagrams/structurizr-Tutorial.png) 
 

docs/workspace.dsl

@@ -235,6 +235,11 @@ workspace {
                 "structurizr.groups" true
             }            
         }
+
+        # don't add a title to the generated diagrams
+        properties {
+            "plantuml.title" false
+        }
 
 
         theme default