update dependencies and descriptions

Gemfile.lock

@@ -2,8 +2,8 @@ PATH
   remote: .
   specs:
     dorian-csv-map (0.0.1)
-      activesupport
       csv
+      dorian-to_struct
 
 GEM
   remote: https://rubygems.org/
@@ -27,6 +27,7 @@ GEM
     csv (3.3.0)
     diff-lcs (1.5.1)
     dorian-times (0.5.0)
+    dorian-to_struct (0.4.0)
     drb (2.2.1)
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
@@ -68,7 +69,7 @@ GEM
       rubocop-ast (>= 1.31.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.32.0)
+    rubocop-ast (1.32.1)
       parser (>= 3.3.1.0)
     rubocop-minitest (0.35.1)
       rubocop (>= 1.61, < 2.0)

dorian-csv-map.gemspec

@@ -4,8 +4,7 @@ Gem::Specification.new do |s|
   s.name = "dorian-csv-map"
   s.version = "0.0.1"
   s.summary = "maps a csv file to another csv file"
-  s.description =
-    "#{s.summary}\n\ne.g. `cat users.csv | csv-map --headers \"it[:name].upcase!\"`"
+  s.description = s.summary
   s.authors = ["Dorian Marié"]
   s.email = "dorian@dorianmarie.com"
   s.files = ["bin/csv-map"]
@@ -14,5 +13,5 @@ Gem::Specification.new do |s|
   s.license = "MIT"
   s.metadata = { "rubygems_mfa_required" => "true" }
   s.add_dependency "csv"
-  s.add_dependency "activesupport"
+  s.add_dependency "dorian-to_struct"
 end