Update ruby

docs/examples/1.4.x/server-ruby/examples/databases/create-string-attribute.md

@@ -1,4 +1,4 @@
-require 'Appwrite'
+require 'appwrite'
 
 include Appwrite
 
@@ -11,4 +11,4 @@ databases = Databases.new(client)
 
 response = databases.create_string_attribute(database_id: '[DATABASE_ID]', collection_id: '[COLLECTION_ID]', key: '', size: 1, required: false)
 
-puts response.inspect
+puts response.inspect