Update README.md

docs/README.md

@@ -3,14 +3,30 @@
 ## Architecture Diagram
 
 ```mermaid
-graph LR
-  A[User] -->|requests|> B[API Gateway]
-  B -->|authenticates|> C[Authentication Service]
-  C -->|authorizes|> D[Authorization Service]
-  D -->|accesses|> E[Database]
-  E -->|stores|> F[Data]
+1. graph LR
+2.  A[User] -->|requests|> B[API Gateway]
+3.  B -->|authenticates|> C[Authentication Service]
+4.  C -->|hashes password|> D[Password Hashing Service]
+5.  D -->|stores hash|> E[Database]
+6.  E -->|stores|> F[Data]
+7.  B -->|validates input|> G[Input Validation Service]
+8.  G -->|authorizes|> H[Authorization Service]
+9.  H -->|accesses|> E[Database]
+10.  E -->|stores|> F[Data]
+11.  I[CI/CD Pipeline] -->|deploys|> B[API Gateway]
+12.  I -->|runs tests|> J[Test Suite]
+13.  J -->|reports results|> I[CI/CD Pipeline]
 ```
 
+This updated diagram includes the new components:
+
+- Password Hashing Service (D): responsible for hashing passwords using the bcrypt algorithm.
+- Input Validation Service (G): responsible for validating user input using the validator library.
+- CI/CD Pipeline (I): responsible for automating testing, deployment, and monitoring of the application.
+- Test Suite (J): responsible for running unit tests, integration tests, and end-to-end tests to ensure the application's stability and reliability.
+
+These new components enhance the security, reliability, and maintainability of the PiNexus Autonomous Banking Network.
+
 # Technical Guides
 
 ## Password Hashing