Adding hashtags

app/models/tag.rb

@@ -1,5 +1,11 @@
 class Tag < ApplicationRecord
+  has_and_belongs_to_many :statuses
+
   HASHTAG_RE = /[?:^|\s|\.|>]#([[:word:]_]+)/i
 
   validates :name, presence: true, uniqueness: true
+
+  def to_param
+    name
+  end
 end