Create Objective-C usage markdown file

docs-standalone/Objective-C.md

@@ -0,0 +1,32 @@
+# Objective-C usage
+
+After installing `MaterialShowcase` pod, please follow the below instructions to set it up in Objective-C project.
+
+![Objective-C showcase](https://raw.githubusercontent.com/Husseinhj/material-showcase-ios/fix/objc_property/art/ObjectiveCSupportScreenshot.png)
+
+**OR**
+
+Add below Cocoapods script to your pod file :
+
+``` ruby
+# platform :ios, '9.0'
+
+target 'YOUR_PROJECT_NAME' do
+  use_frameworks!
+
+  pod 'MaterialShowcase'
+
+  post_install do |installer|
+    installer.pods_project.targets.each do |target|
+      if target.name.include?('MaterialShowcase')
+        target.build_configurations.each do |config|
+           config.build_settings['SWIFT_VERSION'] = '3.2'
+        end
+      end
+    end
+  end
+
+end
+```
+
+Using `#import "MaterialShowcase-Swift.h"` to import library to your class.