add ISSUE template for better information collecting

.github/ISSUE_TEMPLATE.md

+### Paste `npm run doctor` output
+
+
+### Expected behavior
+
+
+### Actual behavior
+
+
+### Steps to reproduce the behavior
+
+

bin/doctor.ts

@@ -10,7 +10,7 @@ const wechaty = Wechaty.instance()
 
 console.log(`
 
-# Wechaty Doctor
+#### Wechaty Doctor
 
 1. Wechaty version: ${wechaty.version()}
 2. ${os.type()} ${os.arch()} version ${os.release()} memory ${Math.floor(os.totalmem() / 1024 / 1024 / 1024)} GB

src/config.ts

@@ -41,7 +41,7 @@ export interface ConfigSetting {
   puppetInstance(instance: Puppet): Puppet
   puppetInstance(instance?: Puppet | null): Puppet | void
 
-  isDocker(): string
+  isDocker: boolean
 
 }
 /* tslint:disable:variable-name */