Add quick start documentation to read me.

ExifLibrary/ExifProperty.cs

@@ -647,7 +647,7 @@ public override ExifInterOperability Interoperability
     }
 
     /// <summary>
-    /// Represents a 16-bit signed integer. (EXIF Specification: SHORT)
+    /// Represents a 16-bit signed integer. (EXIF Specification: SSHORT)
     /// </summary>
     public class ExifSShort : ExifProperty
     {
@@ -676,7 +676,7 @@ public override ExifInterOperability Interoperability
 
     /// <summary>
     /// Represents an array of 16-bit signed integers. 
-    /// (EXIF Specification: SHORT with count > 1)
+    /// (EXIF Specification: SSHORT with count > 1)
     /// </summary>
     public class ExifSShortArray : ExifProperty
     {

README.md

@@ -5,3 +5,57 @@
 [![AppVeyor](https://img.shields.io/appveyor/ci/oozcitak/exiflibrary.svg?style=flat-square)](https://ci.appveyor.com/project/oozcitak/exiflibrary)
 
 ExifLibrary is a .Net Standard library for editing Exif metadata contained in image files.
+
+# Installation #
+
+If you are using [NuGet](https://nuget.org/) you can install the assembly with:
+
+`PM> Install-Package ExifLibNet`
+
+# Quick Start #
+
+To read an image file and extract metadata:
+
+```cs
+var file = ImageFile.FromFile('path_to_image');
+// metadata.Properties is a collection of image metadata
+foreach (var item in file.Properties)
+{
+    if (item.Tag == ExifTag.ISOSpeedRatings)
+    {
+        var isoTag = item as ExifUShort;
+        // the type of Value is unsigned short
+        // see documentation for tag data types
+        ushort iso = isoTag.Value;
+    }
+    else if (item.Tag == ExifTag.Flash)
+    {
+        var flashTag = item as ExifEnumProperty<Flash>;
+        // Value is an enum property
+        Flash flash = flashTag.Value;
+    }
+    else if (item.Tag == ExifTag.GPSLatitude)
+    {
+        var latTag = item as GPSLatitudeLongitude;
+        // Value contains three rational numbers
+        // representing degrees/minutes/seconds
+        // of the latitude 
+        MathEx.UFraction32[] lat = latTag.Value;
+    }
+}
+```
+
+To add metadata:
+
+```cs
+var file = ImageFile.FromFile('path_to_image');
+file.Properties.Add(ExifTag.ISOSpeedRatings, 200);
+
+```
+
+To save the image with metadata:
+
+```cs
+
+file.Save('path_to_image');
+```