Add jq examples

jq.md

@@ -0,0 +1,26 @@
+# jq
+
+## Examples
+
+### Get `RestartPolicy` from Docker container
+
+```
+# docker inspect container1 | jq '.[].HostConfig.RestartPolicy.Name'
+"unless-stopped"
+```
+
+### Get `RestartPolicy` from multiple containers in new JSON object list
+
+```
+# docker inspect container1 container2 | jq '[.[] | {policy_name: .HostConfig.RestartPolicy.Name, name: .Name}]'
+[
+  {
+    "policy_name": "unless-stopped",
+    "name": "container1"
+  },
+  {
+    "policy_name": "unless-stopped",
+    "name": "container2"
+  }
+]
+```