Aparkinson mermaid diagrams

.coauthor/development/architecture/ArchitectureDesign.md

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+
+Here is a simple flow chart:
+
+```mermaid
+    C4Context
+      title System Context diagram for Internet Banking System
+      Enterprise_Boundary(b0, "BankBoundary0") {
+        Person(customerA, "Banking Customer A", "A customer of the bank, with personal bank accounts.")
+        Person(customerB, "Banking Customer B")
+        Person_Ext(customerC, "Banking Customer C", "desc")
+
+        Person(customerD, "Banking Customer D", "A customer of the bank, <br/> with personal bank accounts.")
+
+        System(SystemAA, "Internet Banking System", "Allows customers to view information about their bank accounts, and make payments.")
+
+        Enterprise_Boundary(b1, "BankBoundary") {
+
+          SystemDb_Ext(SystemE, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")
+
+          System_Boundary(b2, "BankBoundary2") {
+            System(SystemA, "Banking System A")
+            System(SystemB, "Banking System B", "A system of the bank, with personal bank accounts. next line.")
+          }
+
+          System_Ext(SystemC, "E-mail system", "The internal Microsoft Exchange e-mail system.")
+          SystemDb(SystemD, "Banking System D Database", "A system of the bank, with personal bank accounts.")
+
+          Boundary(b3, "BankBoundary3", "boundary") {
+            SystemQueue(SystemF, "Banking System F Queue", "A system of the bank.")
+            SystemQueue_Ext(SystemG, "Banking System G Queue", "A system of the bank, with personal bank accounts.")
+          }
+        }
+      }
+
+      BiRel(customerA, SystemAA, "Uses")
+      BiRel(SystemAA, SystemE, "Uses")
+      Rel(SystemAA, SystemC, "Sends e-mails", "SMTP")
+      Rel(SystemC, customerA, "Sends e-mails to")
+
+      UpdateElementStyle(customerA, $fontColor="red", $bgColor="grey", $borderColor="red")
+      UpdateRelStyle(customerA, SystemAA, $textColor="blue", $lineColor="blue", $offsetX="5")
+      UpdateRelStyle(SystemAA, SystemE, $textColor="blue", $lineColor="blue", $offsetY="-10")
+      UpdateRelStyle(SystemAA, SystemC, $textColor="blue", $lineColor="blue", $offsetY="-40", $offsetX="-50")
+      UpdateRelStyle(SystemC, customerA, $textColor="red", $lineColor="red", $offsetX="-50", $offsetY="20")
+
+      UpdateLayoutConfig($c4ShapeInRow="3", $c4BoundaryInRow="1")
+
+```