docs: update examples with the sync config example (#3573)

See https://github.com/project-zot/zot/pull/3537

Note this sync timeout is for the entire image. It is not per HTTP request.

Signed-off-by: Andrei Aaron <andreifdaaron@gmail.com>

examples/config-docker-compat-sync.json

@@ -25,7 +25,8 @@
                     "onDemand": true,
                     "tlsVerify": true,
                     "retryDelay": "5m",
-                    "preserveDigest": true
+                    "preserveDigest": true,
+                    "syncTimeout": "10m"
                 }
             ]
         }

examples/config-sync-cloud-storage.json

@@ -37,7 +37,7 @@
                     ],
                     "onDemand": false,
                     "tlsVerify": false,
-                    "PollInterval": "30m",
+                    "pollInterval": "30m",
                     "content": [
                         {
                             "prefix": "**"

examples/config-sync-ecr-credential-helper.json

@@ -22,7 +22,7 @@
     "extensions": {
         "sync": {
             "credentialsFile": "",
-            "DownloadDir": "/tmp/zot",
+            "downloadDir": "/tmp/zot",
             "registries": [
                 {
                     "urls": [

examples/config-sync.json

@@ -74,7 +74,8 @@
 					"onDemand": true,
 					"tlsVerify": true,
 					"maxRetries": 5,
-					"retryDelay": "30s"
+					"retryDelay": "30s",
+					"syncTimeout": "10m"
 				},
 				{
 					"urls": [