README.md in ruby_branch-0.1.0 vs README.md in ruby_branch-0.2.0

@@ -24,10 +24,11 @@
 
 Configuration:
 
     RubyBranch.configure do |config|
       config.api_key = 'YOUR_API_KEY'
+      config.secret_key = 'YOUR_SECRET_KEY'
       config.branch_domain = 'YOUR_BRANCH_DOMAIN'
       # for fallback in case link creation has been failed
       config.link_to_homepage = 'https://yourdomain.com' # optional
     end
 
@@ -40,9 +41,15 @@
     # Create link without api forcing
     link.create_safely(analytics: {}, data: {}, settings: {})
 
     # Create link through branch api
     link.create(analytics: {}, data: {}, settings: {})
+
+    # Update existing link without api forcing
+    link.update_safely(url: url, analytics: {}, data: {}, settings: {})
+
+    # Update existing link through branch api
+    link.update(url: url, analytics: {}, data: {}, settings: {})
 
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.