docs: use externalResources instead of previous register resource

docs/grid-functionalities/Export-to-Excel.md

@@ -11,9 +11,10 @@
 - [UI Sample](#ui-sample)
 
 ### Description
-You can Export to Excel, it will create an Excel file with the `.xlsx` default extension (you can also change it to be `.xls`). If you wish to export to CSV or other delimiter like Tab Delimited, you can refer to the other [Wiki - Export to File](Export-to-Text-File.md).
 
-**NOTE:** this is an opt-in Service, you must download the necessary Service from `@slickgrid-universal/excel-export` and instantiate it in your grid options via `registerExternalResources`, see multiple examples below.
+You can optionally install the Export to Excel resource, it will give you the flexibility of export your grid data to an Excel file with the `.xlsx` default extension (or `.xls`). If you wish to export to CSV or other delimiter like Tab Delimited, then you will want to take a look at the other [Wiki - Export to File](Export-to-Text-File.md).
+
+**NOTE:** this is an opt-in Service, you must download the necessary Service from `@slickgrid-universal/excel-export` and instantiate it in your grid options via `externalResources`, see multiple examples below.
 
 ### Demo
 [Demo Page](https://ghiscoding.github.io/slickgrid-universal/#/example02) / [Demo Component](https://github.com/ghiscoding/slickgrid-universal/blob/master/examples/webpack-demo-vanilla-bundle/src/examples/example02.ts)

docs/grid-functionalities/Export-to-Text-File.md

@@ -11,7 +11,7 @@ You can Export to File in 2 formats (csv/txt), the following formats are current
 - Export to CSV format (`.csv`)
 - Export to Text file (`.txt`) with a delimiter of your choice (Tab delimited is a good one to use)
 
-**NOTE:** this is an opt-in Service, you must download the necessary Service from `@slickgrid-universal/text-export` and instantiate it in your grid options via `registerExternalResources`, see multiple examples below.
+**NOTE:** this is an opt-in Service, you must download the necessary Service from `@slickgrid-universal/text-export` and instantiate it in your grid options via `externalResources`, see multiple examples below.
 
 ### Demo
 [Demo Page](https://ghiscoding.github.io/slickgrid-universal/#/example02) / [Demo Component](https://github.com/ghiscoding/slickgrid-universal/blob/master/examples/webpack-demo-vanilla-bundle/src/examples/example02.ts)

docs/grid-functionalities/custom-tooltip.md

@@ -21,7 +21,7 @@ A plugin to add Custom Tooltip when hovering a cell, it subscribes to the cell `
 The `customTooltip` is defined in the Column Definition OR Grid Options (the first found will have priority over the second)
 To specify a tooltip when hovering a cell
 
-**NOTE:** this is an opt-in plugin, you must import the necessary plugin from `@slickgrid-universal/custom-tooltip-plugin` and instantiate it in your grid options via `registerExternalResources`, see multiple examples below.
+**NOTE:** this is an opt-in plugin, you must import the necessary plugin from `@slickgrid-universal/custom-tooltip-plugin` and instantiate it in your grid options via `externalResources`, see multiple examples below.
 
 ### Demo
 [Demo Page](https://ghiscoding.github.io/slickgrid-universal/#/example16) / [Demo Component](https://github.com/ghiscoding/slickgrid-universal/blob/master/examples/webpack-demo-vanilla-bundle/src/examples/example16.ts)

packages/custom-tooltip-plugin/README.md

@@ -20,7 +20,7 @@ To specify a tooltip when hovering a cell, extend the column definition like so:
 Available plugin options (same options are available in both column definition and/or grid options)
 
 #### Register the plugin
-In order to use the Service, you will need to register it in your grid options via the `registerExternalResources` as shown in the Example 2 below.
+In order to use the Service, you will need to register it in your grid options via the `externalResources` as shown in the Example 2 below.
 
 ##### Example 1  - via Column Definition
 ```ts

packages/excel-export/README.md

@@ -13,7 +13,7 @@
 ## Excel Export Service
 #### @slickgrid-universal/excel-export
 
-Simple Export to Excel Service that allows to exporting as `.xls` or `.xlsx`.
+Simple Export to Excel Service, which requires [`excel-builder-vanilla`](https://github.com/ghiscoding/excel-builder-vanilla) external dependency, which allows exporting your grid data as `.xls` or `.xlsx` files.
 
 ### Internal Dependencies
 - [@slickgrid-universal/common](https://github.com/ghiscoding/slickgrid-universal/tree/master/packages/common)
@@ -28,7 +28,7 @@ Follow the instruction provided in the main [README](https://github.com/ghiscodi
 You can also use nearly all Excel-Builder-Vanilla options, see their [Excel-Builder-Vanilla - Documentation](https://ghiscoding.gitbook.io/excel-builder-vanilla/) and also take a look at Slickgrid-Universal [Excel Export - Documentation](https://ghiscoding.gitbook.io/slickgrid-universal/grid-functionalities/export-to-excel) on how to use both.
 
 ### Usage
-In order to use the Service, you will need to register it in your grid options via the `registerExternalResources` as shown below.
+In order to use the Service, you will need to register it in your grid options via the `externalResources` as shown below.
 
 ##### ViewModel
 ```ts
@@ -38,10 +38,13 @@ export class MyExample {
   initializeGrid {
     this.gridOptions = {
       enableExcelExport: true,
+      // you need to register it as an external resource
+      externalResources: [new ExcelExportService()],
+
+      // set any options
       excelExportOptions: {
         sanitizeDataExport: true
       },
-      externalResources: [new ExcelExportService()],
     }
   }
 }

packages/rxjs-observable/README.md

@@ -27,7 +27,7 @@ This package is simply a bridge, a facade, to make it possible to use RxJS witho
 Follow the instruction provided in the main [README](https://github.com/ghiscoding/slickgrid-universal#installation), you can see a demo by looking at the [GitHub Demo](https://ghiscoding.github.io/slickgrid-universal) page.
 
 ### Usage
-In order to use the Service, you will need to register it in your grid options via the `registerExternalResources` as shown below and of course install RxJS itself (this package requires [RxJS 7](https://github.com/ReactiveX/RxJS)).
+In order to use the Service, you will need to register it in your grid options via the `externalResources` as shown below and of course install RxJS itself (this package requires [RxJS 7](https://github.com/ReactiveX/RxJS)).
 
 ##### ViewModel
 ```ts

packages/text-export/README.md

@@ -30,7 +30,7 @@ This package requires [text-encoding-utf-8](https://www.npmjs.com/package/text-e
 Follow the instruction provided in the main [README](https://github.com/ghiscoding/slickgrid-universal#installation), you can see a demo by looking at the [GitHub Demo](https://ghiscoding.github.io/slickgrid-universal) page and click on "Export to CSV" from the Grid Menu (aka hamburger menu).
 
 ### Usage
-In order to use the Service, you will need to register it in your grid options via the `registerExternalResources` as shown below.
+In order to use the Service, you will need to register it in your grid options via the `externalResources` as shown below.
 
 ##### ViewModel
 ```ts