Created docs to explain additional switch option

This remove the work-around of creating two arrays and merging them to get the evalues. followed by the reslts Buiilder/Qiery

Author: lrljoe

docs/filters/creating-filters.md

@@ -61,10 +61,15 @@ public function filters(): array
                     25 => 'Type Y',
                     26 => 'Type Z',
                 ],
-            ]),
+            ])
+            ->setFirstOption('All Tags'),
     ];
 }
 ```
+To set a defualt "All" option at the start of the dropdown, you can do so by utilising the 
+```
+->SetFirstOption('NAME')
+```
 
 ## Multi-select Filters
 
@@ -91,23 +96,24 @@ public function filters(): array
 
 ## Multi-select dropdown Filters
 
-Multi-select dropdown filters are a simple dropdown list. The user can select multiple options from the list. There is also an 'All' option that will select all values.
+Multi-select dropdown filters are a simple dropdown list. The user can select multiple options from the list. There is also an 'All' option that will select all values
 
 ```php
-use Rappasoft\LaravelLivewireTables\Views\Filters\MultiSelectDropdownFilter;
+use Rappasoft\LaravelLivewireTables\Views\Filters\SelectFilter;
 
 public function filters(): array
 {
     return [
-        MultiSelectDropdownFilter::make('Tags')
+        SelectFilter::make('Tags')
             ->options(
                 Tag::query()
                     ->orderBy('name')
                     ->get()
                     ->keyBy('id')
                     ->map(fn($tag) => $tag->name)
                     ->toArray()
-            ),
+            )
+            ->setFirstOption('All Tags'),
     ];
 }
 ```