Follow block style guide in GETTING_STARTED

Closes #587

GETTING_STARTED.md

@@ -405,7 +405,7 @@ a particular factory:
 
 ```ruby
 factory :user do
-  sequence(:email) {|n| "person#{n}@example.com" }
+  sequence(:email) { |n| "person#{n}@example.com" }
 end
 ```
 
@@ -413,7 +413,7 @@ You can also override the initial value:
 
 ```ruby
 factory :user do
-  sequence(:email, 1000) {|n| "person#{n}@example.com" }
+  sequence(:email, 1000) { |n| "person#{n}@example.com" }
 end
 ```
 
@@ -429,7 +429,7 @@ Sequences can also have aliases. The sequence aliases share the same counter:
 
 ```ruby
 factory :user do
-  sequence(:email, 1000, aliases: [:sender, :receiver]) {|n| "person#{n}@example.com" }
+  sequence(:email, 1000, aliases: [:sender, :receiver]) { |n| "person#{n}@example.com" }
 end
 
 # will increase value counter for :email which is shared by :sender and :receiver
@@ -440,7 +440,7 @@ Define aliases and use default value (1) for the counter
 
 ```ruby
 factory :user do
-  sequence(:email, aliases: [:sender, :receiver]) {|n| "person#{n}@example.com" }
+  sequence(:email, aliases: [:sender, :receiver]) { |n| "person#{n}@example.com" }
 end
 ```
 
@@ -448,7 +448,7 @@ Setting the value:
 
 ```ruby
 factory :user do
-  sequence(:email, 'a', aliases: [:sender, :receiver]) {|n| "person#{n}@example.com" }
+  sequence(:email, 'a', aliases: [:sender, :receiver]) { |n| "person#{n}@example.com" }
 end
 ```
 
@@ -706,8 +706,8 @@ To override callbacks for all factories, define them within the
 
 ```ruby
 FactoryGirl.define do
-  after(:build) {|object| puts "Built #{object}" }
-  after(:create) {|object| AuditLog.create(attrs: object.attributes) }
+  after(:build) { |object| puts "Built #{object}" }
+  after(:create) { |object| AuditLog.create(attrs: object.attributes) }
 
   factory :user do
     name "John Doe"
@@ -747,7 +747,7 @@ If a gem were to give you a User factory:
 FactoryGirl.define do
   factory :user do
     full_name "John Doe"
-    sequence(:username) {|n| "user#{n}" }
+    sequence(:username) { |n| "user#{n}" }
     password "password"
   end
 end
@@ -829,7 +829,7 @@ class User
 end
 
 # factories.rb
-sequence(:email) {|n| "person#{n}@example.com" }
+sequence(:email) { |n| "person#{n}@example.com" }
 
 factory :user do
   ignore do
@@ -1016,9 +1016,9 @@ FactoryGirl.register_strategy(:json, JsonStrategy)
 
 FactoryGirl.define do
   factory :user do
-    before(:json)                {|user| do_something_to(user) }
-    after(:json)                 {|user_json| do_something_to(user_json) }
-    callback(:make_json_awesome) {|user_json| do_something_to(user_json) }
+    before(:json)                { |user| do_something_to(user) }
+    after(:json)                 { |user_json| do_something_to(user_json) }
+    callback(:make_json_awesome) { |user_json| do_something_to(user_json) }
   end
 end
 ```
@@ -1032,7 +1032,7 @@ may not always be ideal, you can override that behavior by defining
 
 ```ruby
 factory :different_orm_model do
-  to_create {|instance| instance.persist! }
+  to_create { |instance| instance.persist! }
 end
 ```
 
@@ -1050,7 +1050,7 @@ To override `to_create` for all factories, define it within the
 
 ```ruby
 FactoryGirl.define do
-  to_create {|instance| instance.persist! }
+  to_create { |instance| instance.persist! }
 
 
   factory :user do