Hkjc: init support

fix https://github.com/googlehosts/hosts/issues/259

data/hosts.yml

@@ -3129,6 +3129,19 @@ hosts:
       - ip: 216.58.200.243
         domain: www.humblebundle.com
 
+  - name: Hkjc
+    items:
+      - ip: 101.78.207.166
+        domain: www.hkjc.com
+      - ip: 203.82.9.18
+        domain: bet.hkjc.com
+      - ip: 101.78.207.157
+        domain: common.hkjc.com
+      - ip: 203.86.162.153
+        domain: search.hkjc.com
+      - ip: 101.78.207.158
+        domain: football.hkjc.com
+
   - name: imgur
     items:
       - ip: 151.101.100.193