Add microposts to seeds

Author: mhartl

db/seeds.rb

@@ -19,3 +19,10 @@
                activated: true,
                activated_at: Time.zone.now)
 end
+
+# Generate microposts for a subset of users.
+users = User.order(:created_at).take(6)
+50.times do
+  content = Faker::Lorem.sentence(word_count: 5)
+  users.each { |user| user.microposts.create!(content: content) }
+end