Add Jazzy documentation

Gemfile

@@ -1,3 +1,4 @@
 source 'https://rubygems.org' do
   gem 'cocoapods', '1.9.1'
+  gem 'jazzy', '0.13.6'
 end

Gemfile.lock

@@ -61,18 +61,37 @@ GEM
     httpclient (2.8.3)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
+    jazzy (0.13.6)
+      cocoapods (~> 1.5)
+      mustache (~> 1.1)
+      open4
+      redcarpet (~> 3.4)
+      rouge (>= 2.0.6, < 4.0)
+      sassc (~> 2.1)
+      sqlite3 (~> 1.3)
+      xcinvoke (~> 0.3.0)
     json (2.3.1)
+    liferaft (0.0.6)
     minitest (5.14.2)
     molinillo (0.6.6)
+    mustache (1.1.1)
     nanaimo (0.3.0)
     nap (1.1.0)
     netrc (0.11.0)
+    open4 (1.3.4)
+    redcarpet (3.5.1)
+    rouge (3.26.0)
     ruby-macho (1.4.0)
+    sassc (2.4.0)
+      ffi (~> 1.9)
+    sqlite3 (1.4.2)
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
     tzinfo (1.2.7)
       thread_safe (~> 0.1)
+    xcinvoke (0.3.0)
+      liferaft (~> 0.0.6)
     xcodeproj (1.19.0)
       CFPropertyList (>= 2.3.3, < 4.0)
       atomos (~> 0.1.3)
@@ -85,6 +104,7 @@ PLATFORMS
 
 DEPENDENCIES
   cocoapods (= 1.9.1)!
+  jazzy (= 0.13.6)!
 
 BUNDLED WITH
    2.1.4