Add config file for CircleCI

Reason for Change
=================
* Continuous integration is a good way to ensure the app is building properly and the test suite is green

Changes
=======
* Add a `.circleci/config.yml` file.

Minor
=====
* Fix remaining master > main corrections
* Add a note about draft PRs

Author: adarsh

Diff for: .circleci/config.yml

@@ -0,0 +1,56 @@
+version: 2.1
+
+orbs:
+  ruby: circleci/[email protected]
+  node: circleci/node@2
+
+jobs:
+  build:
+    docker:
+      - image: cimg/ruby:2.7.5
+    steps:
+      - checkout
+      - ruby/install-deps
+      - node/install-packages:
+          pkg-manager: yarn
+          cache-key: "yarn.lock"
+  test:
+    # parallelism: 3
+    docker:
+      - image: cimg/ruby:2.7.5
+      - image: circleci/postgres:9.5-alpine
+        environment:
+          POSTGRES_USER: circleci-demo-ruby
+          POSTGRES_DB: rails_blog_test
+          POSTGRES_PASSWORD: ""
+    environment:
+      BUNDLE_JOBS: "3"
+      BUNDLE_RETRY: "3"
+      PGHOST: 127.0.0.1
+      PGUSER: circleci-demo-ruby
+      PGPASSWORD: ""
+      RAILS_ENV: test
+    steps:
+      - checkout
+      - ruby/install-deps
+      - node/install-packages:
+          pkg-manager: yarn
+          cache-key: "yarn.lock"
+      - run:
+          name: Wait for DB
+          command: dockerize -wait tcp://localhost:5432 -timeout 1m
+      - run:
+          name: Database setup
+          command: bundle exec rails db:schema:load --trace
+      # Run rspec in parallel
+      - ruby/rspec-test
+      - ruby/rubocop-check
+
+workflows:
+  version: 2
+  build_and_test:
+    jobs:
+      - build
+      - test:
+          requires:
+            - build

Diff for: CONTRIBUTING.md

@@ -32,7 +32,7 @@ Guidelines for bug reports:
    reported.
 
 2. **Check if the issue has been fixed** — try to reproduce it using the
-   latest `master` or development branch in the repository.
+   latest `main` or development branch in the repository.
 
 3. **Isolate the problem** — create a [reduced test
    case](http://css-tricks.com/6263-reduced-test-cases/) and a live example.
@@ -136,7 +136,7 @@ project:
    ```
 
 7. [Open a Pull Request](https://help.github.com/articles/using-pull-requests/)
-    with a clear title and description.
+    with a clear title and description. NOTE: please avoid opening Pull Requests for Work-in-Progress or draft code. Opening a PR sends many notifications to followers and we want to conserve their attention span.
 
 **IMPORTANT**: By submitting a patch, you agree to allow the project owner to
 license your work under the same license as that used by the project.

Diff for: README.md

@@ -23,7 +23,7 @@ The CFP App does not provide a public facing website for your conference, though
 * PostgreSQL 14.1
 * Google Chrome browser must be installed to run tests
 
-Make sure you have Ruby and Postgres installed in your environment.  Double check in the [Gemfile](../blob/master/Gemfile) for the exact supported version.  This is a Rails 6 app and uses bundler to install all required gems.  We are also making the assumption that you're familiar with how Rails apps are setup and deployed.  If this is not the case then you'll want to refer to documentation that will bridge any gaps in the instructions below.
+Make sure you have Ruby and Postgres installed in your environment.  Double check in the [Gemfile](../blob/main/Gemfile) for the exact supported version.  This is a Rails 6 app and uses bundler to install all required gems.  We are also making the assumption that you're familiar with how Rails apps are setup and deployed.  If this is not the case then you'll want to refer to documentation that will bridge any gaps in the instructions below.
 
 Run [bin/setup](bin/setup) script to install gem dependencies and setup database for development.