Update README.md

Author: oblomov-dev

README.md

@@ -1,12 +1,34 @@
 # build standalone
-All abap2UI5 artifacts are combined into a single HTTP handler implementation. This approach makes your app completely independent of the rest of the system.
+All abap2UI5 artifacts are combined into a single HTTP handler implementation. This approach makes your app completely independent of the rest of the system or any other abap2UI5 installation.
 
-#### Start
+#### Installation
 
-App: `z2ui5_cl_my_standalone_app`
+1. Create a new HTTP handler in your system.
+2. Copy & paste the handler class from this repository.
+3. Add your abap2UI5 app as a local class and start it via your new HTTP endpoint.
+4. Alternatively, pull this repository using abapGit.
 
-API: `/sap/bc/z2ui5standalone?sap-client=001&app_start=z2ui5_cl_my_standalone_app`
+#### Persistence
+To avoid any side effects with other abap2UI5 installations, this version uses the table z2ui5_t_99 for persistence. You can either pull this repository or manually create the following table in your system:
+```cds
+@EndUserText.label : 'abap2ui5 standalone'
+@AbapCatalog.enhancement.category : #NOT_EXTENSIBLE
+@AbapCatalog.tableCategory : #TRANSPARENT
+@AbapCatalog.deliveryClass : #A
+@AbapCatalog.dataMaintenance : #RESTRICTED
+define table z2ui5_t_99 {
+  key mandt         : mandt not null;
+  key id            : abap.char(32) not null;
+  id_prev           : abap.char(32);
+  id_prev_app       : abap.char(32);
+  id_prev_app_stack : abap.char(32);
+  timestampl        : timestampl;
+  uname             : abap.char(20);
+  data              : abap.string(0);
 
+}
+```
 
-#### Credits
-* [abapmerge](https://github.com/larshp/abapmerge)
+#### Info
+* HTTP API: `/sap/bc/z2ui5standalone?sap-client=001&app_start=z2ui5_cl_my_standalone_app`
+* Credits: Created with and powered by the fantastic tool [abapmerge](https://github.com/larshp/abapmerge)