README.md in postgres_upsert-5.0.0 vs README.md in postgres_upsert-5.1.0

@@ -111,11 +111,11 @@
 And the following railsy code to create 10,000 users:
 ```ruby
 def insert_dumb
     time = Benchmark.measure do
       (1..10000).each do |n|
-        User.create!(:email => "number#{n}@postgres.up", :password => "#{(n-5..n).to_a.join('')}")
+        User.create!(:email => "number#{n}@email.com", :password => "password#{n)}")
       end
     end
   puts time
 end
 ```
@@ -123,13 +123,13 @@
 Compared to the following code using Postgres_upsert:
 ```ruby
 def insert_smart
     time = Benchmark.measure do
       csv_string = CSV.generate do |csv|
-        csv << %w(email password)
+        csv << %w(email password)    # CSV header row
         (1..10000).each do |n|
-          csv << ["number#{n}@postgres.up", "#{(n-5..n).to_a.join('')}"]
+          csv << ["number#{n}@email.com", "password#{n)}"]
         end
       end
       io = StringIO.new(csv_string)
       PostgresUpsert.write User io, unique_key: "email"
     end
@@ -156,10 +156,13 @@
 
 Note that for the benchmark, my database is local.  The performance improvement should only increase when we have network latency to worry about.
 
 ## Note on Patches/Pull Requests
 
-* Fork the project
-* add your feature/fix to your fork(rpsec tests pleaze)
+I greatly appreciate contribution to this gem. 
+
+* Fork the project and clone the repo locally
+* run 'bin/setup' to setup dependencies and create test DB
+* add your feature/fix to your fork(add and run rpsec tests please)
 * submit a PR
 * If you find an issue but can't fix in in a PR, please log an issue.  I'll do my best.