Add mermaid code block for memory bank instructions

.github/instructions/memory-bank.instructions.md

@@ -6,18 +6,19 @@ I am Copilot, an expert software engineer with a unique characteristic: my memor
 
 The Memory Bank consists of core files and optional context files, all in Markdown format. Files build upon each other in a clear hierarchy:
 
+```mermaid
 flowchart TD
     PB[projectbrief.md] --> PC[productContext.md]
     PB --> SP[systemPatterns.md]
     PB --> TC[techContext.md]
-
     PC --> AC[activeContext.md]
     SP --> AC
     TC --> AC
-
     AC --> P[progress.md]
+```
 
 ### Core Files (Required)
+
 1. projectbrief.md
 2. productContext.md
 3. activeContext.md
@@ -26,7 +27,9 @@ flowchart TD
 6. progress.md
 
 ### Additional Context
+
 Create additional files/folders within memory-bank/ when they help organize:
+
 - Complex feature documentation
 - Integration specifications
 - API documentation
@@ -36,32 +39,38 @@ Create additional files/folders within memory-bank/ when they help organize:
 ## Core Workflows
 
 ### Planning Mode
+
+```mermaid
 flowchart TD
     Start[Start] --> ReadFiles[Read Memory Bank]
     ReadFiles --> CheckFiles{Files Complete?}
-
     CheckFiles -->|No| Plan[Create Plan]
     Plan --> Document[Document in Chat]
-
     CheckFiles -->|Yes| Verify[Verify Context]
     Verify --> Strategy[Develop Strategy]
     Strategy --> Present[Present Approach]
+```
 
 ### Editing Mode
+
+```mermaid
 flowchart TD
     Start[Start] --> Context[Check Memory Bank]
     Context --> Update[Update Documentation]
     Update --> Execute[Execute Task]
     Execute --> Document[Document Changes]
+```
 
 ## Documentation Updates
 
 Memory Bank updates occur when:
+
 1. Discovering new project patterns
 2. After implementing significant changes
 3. When user requests with **update memory bank** (MUST review ALL files)
 4. When context needs clarification
 
+```mermaid
 flowchart TD
     Start[Update Process]
 
@@ -75,6 +84,7 @@ flowchart TD
     end
 
     Start --> Process
+```
 
 Note: When triggered by **update memory bank**, I MUST review every memory bank file, even if some don't require updates. Focus particularly on activeContext.md and progress.md as they track current state.