update README

Author: ProjektGopher

README.md

@@ -1,19 +1,30 @@
-# Generates strings for use in ffmpeg commands to tween between values with easings.
+# Generate FFMpeg easing and tweening strings in Laravel.
 
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-This is where your description should go. Limit it to a paragraph or two. Consider adding a small example.
-
-## Support us
+FFMpeg can be opaque in its commands. Take the following example:
+```bash
+if(lt(t\,5)\,((w*7/8)-text_w-200)\,if(gt(t\,5+2)\,((w*7/8)-text_w)\,((w*7/8)-text_w-200)+((((w*7/8)-text_w)-((w*7/8)-text_w-200))(if(eq(((t-5)/2)\,0)\,0\,if(eq(((t-5)/2)\,1)\,1\,pow(2\,-10((t-5)/2))*sin((((t-5)/2)*10-0.75)*2.0943951023932)+1))))))
+```
+This **completely bonkers** string will calculate _just_ the `x` position of a text element. It'll wait 5 seconds, animate the element from 200px left of its final position over 2 seconds with an easing of `EaseOutElastic`. How would you approach changing this to an easing of `EaseOutBounce`? Not gonna happen.
 
-[<img src="https://github-ads.s3.eu-central-1.amazonaws.com/laravel-ffmpeg-tween.jpg?t=1" width="419px" />](https://spatie.be/github-ad-click/laravel-ffmpeg-tween)
+This package allows you to build these string in a fluent way that's easily maintainable in a way that feels familiar to php and Laravel devs. The following example will output the exact same string as above, but imagine how much easier it'll be to change:
+```php
+$finalXpos = '(w*7/8)-text_w';
+$posX = (new Tween)
+    ->from("{$finalXpos}-200")
+    ->to($finalXpos)
+    ->delay(Timing::seconds(5))
+    ->duration(Timing::seconds(2))
+    ->ease(Ease::OutElastic);
+```
 
-We invest a lot of resources into creating [best in class open source packages](https://spatie.be/open-source). You can support us by [buying one of our paid products](https://spatie.be/open-source/support-us).
+The API is modelled after [The GreenSock Animation Platform (GSAP)](https://greensock.com/get-started/#whatIsGSAP)
+and all the math for the easings is ported from [Easings.net](https://easings.net.)
 
-We highly appreciate you sending us a postcard from your hometown, mentioning which of our package(s) you are using. You'll find our address on [our contact page](https://spatie.be/about-us). We publish all received postcards on [our virtual postcard wall](https://spatie.be/open-source/postcards).
 
 ## Installation
 
@@ -23,31 +34,9 @@ You can install the package via composer:
 composer require projektgopher/laravel-ffmpeg-tween
 ```
 
-You can publish and run the migrations with:
+### Using outside of a Laravel application
 
-```bash
-php artisan vendor:publish --tag="laravel-ffmpeg-tween-migrations"
-php artisan migrate
-```
-
-You can publish the config file with:
-
-```bash
-php artisan vendor:publish --tag="laravel-ffmpeg-tween-config"
-```
-
-This is the contents of the published config file:
-
-```php
-return [
-];
-```
-
-Optionally, you can publish the views using
-
-```bash
-php artisan vendor:publish --tag="laravel-ffmpeg-tween-views"
-```
+For now this package can only be used within a Laravel app, but there are plans to extract the core functionality out into a separate package that can be used without being bound to the framework.
 
 ## Usage