Merge pull request 'Configure CI builds' (#3) from dev/configure_drone_ci into master

Reviewed-on: #3

.drone.yml

@@ -0,0 +1,14 @@
+kind: pipeline
+type: docker
+name: CI build
+
+steps:
+  - name: rspec
+    image: guildeducation/rails:2.7.1-12.19.0
+    commands:
+      - bundle install
+      - yarn install
+      - bundle exec rspec
+    when:
+      branch:
+        - master

Gemfile

@@ -1,8 +1,6 @@
 source 'https://rubygems.org'
 git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-ruby '2.6.1'
-
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 6.0.3', '>= 6.0.3.4'
 # Use sqlite3 as the database for Active Record

Gemfile.lock

@@ -268,8 +268,5 @@ DEPENDENCIES
   web-console (>= 3.3.0)
   webpacker (~> 4.0)
 
-RUBY VERSION
-   ruby 2.6.1p33
-
 BUNDLED WITH
    2.0.2