Refresh README and add remote debugging guide

.github/workflows/protocol.yml

@@ -24,7 +24,7 @@ jobs:
         ruby-version: ['2.6', '2.7', '3.0', '3.1', 'head', 'debug']
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Ruby
     # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
     # change this to (see https://github.com/ruby/setup-ruby#versioning):

.github/workflows/ruby-macos.yaml

@@ -0,0 +1,39 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
+# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
+
+name: Ruby(macOS)
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+
+    runs-on: macos-latest
+    timeout-minutes: 15
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby-version: ['3.1', 'head']
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+    # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
+    # change this to (see https://github.com/ruby/setup-ruby#versioning):
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby-version }}
+        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - name: Run tests
+      run: |
+        bundle exec rake clobber
+        bundle exec rake compile
+        bundle exec rake test_console

.github/workflows/ruby.yml

@@ -17,14 +17,14 @@ jobs:
   test:
 
     runs-on: ubuntu-latest
-    timeout-minutes: 15
+    timeout-minutes: 30
     strategy:
       fail-fast: false
       matrix:
         ruby-version: ['2.6', '2.7', '3.0', '3.1', 'head', 'debug']
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Ruby
     # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
     # change this to (see https://github.com/ruby/setup-ruby#versioning):

CONTRIBUTING.md

@@ -320,6 +320,22 @@ Execute debugging `program` with `&scenario`. If you want to test it only for DA
 
 `run_protocol_scenario program, cdp: false ...`
 
+- attach_to_dap_server(terminate_debuggee:)
+
+Attach to the running DAP server through UNIX Domain Socket.
+
+- attach_to_cdp_server
+
+Attach to the running CDP server through TCP/IP.
+
+- req_dap_disconnect
+
+Disconnect from the currently connected DAP server.
+
+- req_cdp_disconnect
+
+Disconnect from the currently connected CDP server.
+
 - req_add_breakpoint(lineno, path: temp_file_path, cond: nil)
 
 Sends request to rdbg to add a breakpoint.
@@ -377,10 +393,6 @@ Sends request to rdbg to step back from current method.
 
 Sends request to rdbg to terminate the debuggee.
 
-- assert_reattach
-
-Passes if reattaching to rdbg is successful.
-
 - assert_hover_result(expected, expression)
 
 Passes if result of `expression` matches `expected`.