diff --git a/README.md b/README.md
index 7127265..718dc91 100644
--- a/README.md
+++ b/README.md
@@ -54,9 +54,9 @@ To understand the why and how, you might want to read [Why.md](https://github.co
 ## Architecture
 A simple scalable architecture:
 
-![Architecture overview](https://raw.githubusercontent.com/xbgmsharp/postgsail/main/PostgSail.png "Architecture overview")
+For more clarity and visibility the complete [Architecture overview](https://github.com/xbgmsharp/postgsail/blob/main/docs/README.md).
 
-For more clarity and visibility the complete [Entity-Relationship Diagram (ERD)](https://github.com/xbgmsharp/postgsail/tree/main/ERD/README.md) is export as PNG and SVG file.
+For more clarity and visibility the complete [Entity-Relationship Diagram (ERD)](https://github.com/xbgmsharp/postgsail/blob/main/docs/ERD/README.md) is export as Mermaid, PNG and SVG file.
 
 ## Cloud
 
@@ -132,8 +132,9 @@ You can connect to the database via a web gui like [pgadmin](https://www.pgadmin
 Then launch the web frontend, execute:
 
 ```bash
-$ docker compose build web
+$ docker compose up web
 ```
+The frontend should be accessible via port HTTP/8080.
 
 ### SQL Configuration
 
diff --git a/docs/ERD/README.md b/docs/ERD/README.md
index c63efcb..8941052 100644
--- a/docs/ERD/README.md
+++ b/docs/ERD/README.md
@@ -4,7 +4,7 @@ The Entity-Relationship Diagram (ERD) provides a graphical representation of dat
 ## A global overview
 Auto generated Mermaid diagram using [mermerd](https://github.com/KarnerTh/mermerd) and [MermaidJs](https://github.com/mermaid-js/mermaid).
 
-![PostgSail SQL Schema](https://github.com/xbgmsharp/postgsail/tree/main/docs/ERD/postgsail.md "PostgSail SQL Schema")
+[PostgSail SQL Schema](https://github.com/xbgmsharp/postgsail/tree/main/docs/ERD/postgsail.md "PostgSail SQL Schema")
 
 ## Further
 There is 3 main schemas:
@@ -45,7 +45,7 @@ There is 3 main schemas:
 ## Ingest flowchart
 ```mermaid
 graph LR
-    A[SignalK] -- HTTP POST --> B{PostGREST}
+    A[SignalK] -- HTTP POST --> B{PostgREST}
     B -- SQL --> C{PostgreSQL}
     C --> D((metadata trigger))
     C --> E((metrics trigger))
@@ -57,7 +57,7 @@ graph LR
 
 ## pg_cron flowchart
 ```mermaid
-graph LR
+flowchart TD
     A[pg_cron] --> B((cron_new_notification))
     A --> C((cron_pre_logbook))
     A --> D((cron_new_logbook))
diff --git a/docs/README.md b/docs/README.md
index 0e5f1c0..4021df1 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,2 +1,4 @@
 
 Simple and scalable architecture.
+
+![Architecture overview](https://raw.githubusercontent.com/xbgmsharp/postgsail/main/PostgSail.png "Architecture overview")