Update readme with installation and usage

README.md

@@ -1,2 +1,68 @@
+<div align="center">
+	<br>
+	<img width="172" src="https://raw.githubusercontent.com/ClydeDz/give-me-an-avatar-npm/main/icon.jpg" alt="Give me an avatar npm package icon">
+	<br>
+	<br>
+</div>  
+
 # Give Me an Avatar
-Gets a random avatar URL from a collection of different avatar generation services.  
+Gets a random avatar URL from a collection of different avatar generation services.  
+
+## Installation and usage
+Library can either be directly downloaded from [Nuget.org](https://www.nuget.org/packages/give-me-an-avatar/), OR installed via the [NuGet Package Manager UI](https://docs.microsoft.com/en-us/nuget/tools/package-manager-ui#finding-and-installing-a-package) or via the [Package Manager Console](https://docs.microsoft.com/en-us/nuget/tools/package-manager-console) if you're using Visual Studio.
+
+Command to install Give Me an Avatar NuGet via the Package Manager Console UI in Visual Studio shown below.
+```PowerShell
+PM> Install-Package give-me-an-avatar
+```
+
+Include the namespace in your program.
+```C#
+using GiveMeAnAvatar;
+```
+
+Then go ahead and consume it.
+```C#
+var avatarURL= GiveMeAnAvatar.GetAvatarURL();
+``` 
+
+Or supply optional settings to get a slightly customized avatar URL.
+```C#
+var settings = new AvatarSettings() { Name = "John Smith", Size = 124 };
+var avatarURL= GiveMeAnAvatar.GetAvatarURL(settings);
+``` 
+
+
+
+## Supported avatar services
+
+| Service                                    | Avatar example                                       |
+|--------------------------------------------|------------------------------------------------------|
+| [placeholder.com](https://placeholder.com) | ![image](https://via.placeholder.com/128?Text=J%20S) |
+| [placeimg.com](https://placeimg.com)       | ![image](https://placeimg.com/128/128/people)        |
+| [placekitten.com](https://placekitten.com) | ![image](https://placekitten.com/g/128/128?cache=invalidate)          |
+| [dummyimage.com](https://dummyimage.com/)  | ![image](https://dummyimage.com/128x128&text=J%20S)  |
+| [loremflickr.com](https://loremflickr.com) | ![image](https://loremflickr.com/128/128/human)      |
+| [baconmockup.com](https://baconmockup.com) | ![image](https://baconmockup.com/128/128/)           |
+| [placebeard.it](https://placebeard.it)     | ![image](https://placebeard.it/128)                  |
+| [fakeimg.pl](https://fakeimg.pl)           | ![image](https://fakeimg.pl/128x128/?text=John%20Smith&font=bebas)   |
+| [thispersondoesnotexist.com](https://thispersondoesnotexist.com/) | <img src="https://thispersondoesnotexist.com/image" width="128"/> |
+| [picsum.photos](https://picsum.photos/)     | ![image](https://picsum.photos/128)                  |
+| [fillmurray.com](https://www.fillmurray.com)     | ![image](https://www.fillmurray.com/128/128)    |
+| [placecage.com](https://www.placecage.com)       | ![image](https://www.placecage.com/128/128)     |
+| [stevensegallery.com](https://www.stevensegallery.com)       | ![image](https://www.stevensegallery.com/128/128)  |
+| [gravatar.com](https://www.gravatar.com)    | ![image](https://www.gravatar.com/avatar/default?s=128)     |
+| [ui-avatars.com](https://www.ui-avatars.com)    | ![image](https://ui-avatars.com/api/?background=random&size=128&name=J%20S)     |
+| [generative-placeholders.glitch.me](https://generative-placeholders.glitch.me)       | ![image](https://generative-placeholders.glitch.me/image?width=128&height=128)     |
+| [robohash.org](https://robohash.org)       | ![image](https://robohash.org/John%20Smith?size=128x128&set=set1) ![image](https://robohash.org/John%20Smith?size=128x128&set=set2) ![image](https://robohash.org/John%20Smith?size=128x128&set=set3) ![image](https://robohash.org/John%20Smith?size=128x128&set=set4)     |
+| [avatars.dicebear.com](https://avatars.dicebear.com)     | ![image](https://avatars.dicebear.com/4.5/api/gridy/John%20Smith.svg?w=128&h=128) ![image](https://avatars.dicebear.com/4.5/api/human/John%20Smith.svg?w=128&h=128) ![image](https://avatars.dicebear.com/4.5/api/identicon/John%20Smith.svg?w=128&h=128) ![image](https://avatars.dicebear.com/4.5/api/jdenticon/John%20Smith.svg?w=128&h=128) ![image](https://avatars.dicebear.com/4.5/api/avataaars/John%20Smith.svg?w=128&h=128)  ![image](https://avatars.dicebear.com/4.5/api/bottts/John%20Smith.svg?w=128&h=128)             |
+| [avatar.uimaterial.com](https://avatar.uimaterial.com)     | ![image](https://avatar.uimaterial.com/?setId=0496UVJDTqyd2eCIAa46&name=John%20Smith&size=128) ![image](https://avatar.uimaterial.com/?setId=8Pfmys5bgfL2NbXFG2sU&name=John%20Smith&size=128) ![image](https://avatar.uimaterial.com/?setId=SM2u3518GjohwtHQXNK0&name=John%20Smith&size=128) ![image](https://avatar.uimaterial.com/?setId=Pb7ErSM37KjjIZyJk8w6&name=John%20Smith&size=128)   |
+
+## Notes
+* I'm not using [avataaars](https://avataaars.io/) separately since [avatars.dicebear.com](https://avatars.dicebear.com) includes avataaars.    
+* Placekitten image might appear broken at times in the table above, however, the image service itself runs fine.     
+
+## Credits   
+- All the avatar services used in this npm package are outlined in the table above.    
+- Package logo created using [AutoDraw](https://www.autodraw.com/).   
+- This NPM package is developed by [Clyde D'Souza](https://twitter.com/clydedz).