Update documentation

Author: byjg

.vscode/launch.json

@@ -335,6 +335,15 @@ Because this project uses PHP Session you need to run the unit test the followin
 phpunit --stderr
 ```
 
+## Dependencies
+
+```mermaid  
+flowchart TD  
+    byjg/authuser --> byjg/micro-orm
+    byjg/authuser --> byjg/cache-engine
+    byjg/authuser --> byjg/jwt-wrapper  
+```
+
 
 ----
 [Open source ByJG](http://opensource.byjg.com)

README.md

@@ -9,7 +9,7 @@
   "minimum-stability": "dev",
   "prefer-stable": true,
   "require": {
-    "php": ">=5.6.0",
+    "php": ">=7.4",
     "byjg/micro-orm": "4.9.*",
     "byjg/cache-engine": "4.9.*",
     "byjg/jwt-wrapper": "4.9.*"