Update readme

README.md

@@ -19,6 +19,18 @@
         implementation("ru.touchin:common")
     }
     ```
+    
+## Existing tasks
+Detekt:
+- `gradle $project:detekt` - detect not formatted, complex code.
+
+Reports are stored in "$pwd/build/reports/kotlin-detekt-${project.name}.html".
+
+DiKTat:
+- `gradle :diktatCheck` - detect not formatted code of "kt", "kts" files;
+- `gradle :diktatFix` - if possible, fix not formatted code.
+
+Reports are stored in "$pwd/build/reports/diktat-check-report.html".
 
 ## common