Update the pull request template

Author: seratch

.github/pull_request_template.md

@@ -6,13 +6,13 @@
 
 - [ ] **slack_sdk.web.WebClient (sync/async)** (Web API client)
 - [ ] **slack_sdk.webhook.WebhookClient (sync/async)** (Incoming Webhook, response_url sender)
-- [ ] **slack_sdk.models** (UI component builders)
-- [ ] **slack_sdk.oauth** (OAuth Flow Utilities)
 - [ ] **slack_sdk.socket_mode** (Socket Mode client)
-- [ ] **slack_sdk.audit_logs** (Audit Logs API client)
-- [ ] **slack_sdk.scim** (SCIM API client)
-- [ ] **slack_sdk.rtm** (RTM client)
 - [ ] **slack_sdk.signature** (Request Signature Verifier)
+- [ ] **slack_sdk.oauth** (OAuth Flow Utilities)
+- [ ] **slack_sdk.models** (UI component builders)
+- [ ] **slack_sdk.scim** (SCIM API client)
+- [ ] **slack_sdk.audit_logs** (Audit Logs API client)
+- [ ] **slack_sdk.rtm_v2** (RTM client)
 - [ ] `/docs-src` (Documents, have you run `./docs.sh`?)
 - [ ] `/docs-src-v2` (Documents, have you run `./docs-v2.sh`?)
 - [ ] `/tutorial` (PythOnBoardingBot tutorial)
@@ -22,4 +22,4 @@
 
 - [ ] I've read and understood the [Contributing Guidelines](https://github.com/slackapi/python-slack-sdk/blob/main/.github/contributing.md) and have done my best effort to follow them.
 - [ ] I've read and agree to the [Code of Conduct](https://slackhq.github.io/code-of-conduct).
-- [ ] I've run `python setup.py validate` after making the changes.
+- [ ] I've run `python3 -m venv .venv && source .venv/bin/activate && ./scripts/run_validation.sh` after making the changes.

scripts/run_validation.sh

@@ -3,7 +3,9 @@
 
 script_dir=`dirname $0`
 cd ${script_dir}/..
-pip install "black==21.5b1"
-black slack_sdk/ slack/ tests/ && \
+pip install -U pip && \
+  pip install -e ".[testing]" && \
+  pip install -e ".[optional]" && \
+  black slack_sdk/ slack/ tests/ && \
   python setup.py codegen && \
   python setup.py validate