Add gravatar

app/models/user.rb

@@ -8,6 +8,11 @@ class User < ApplicationRecord
   has_many :shots, dependent: :nullify
 
   validates :name, presence: true, if: :public?
+
+  def gravatar_url
+    hash = Digest::MD5.hexdigest(email.to_s.downcase)
+    "https://www.gravatar.com/avatar/#{hash}.jpg"
+  end
 end
 
 # == Schema Information

app/views/people/index.html.slim

@@ -9,6 +9,10 @@ h2.blue.center Decent People
     tbody
       - @users.each do |user|
         tr
-          td = user.name
+          td
+            img.vertical-middle src="#{user.gravatar_url}?s=25&d=blank"
+            span.vertical-middle
+              '
+              = user.name
           td.nowrap
             = link_to "See Their Shots", users_shots_path(user.id), class: "pure-button button-small pure-button-primary"

app/views/people/show.html.slim

@@ -1,2 +1,4 @@
-h2.blue.center #{@user.name}'s Shots
+h2.blue.center
+  img.vertical-middle src="#{@user.gravatar_url}?s=50&d=blank"
+  span.vertical-middle  #{@user.name}'s Shots
 = render "shots/list", shots: @shots