docs: victorialogs add front-matter for data-ingestion items

Signed-off-by: Artem Navoiev <tenmozes@gmail.com>

docs/VictoriaLogs/data-ingestion/Filebeat.md

@@ -1,3 +1,12 @@
+---
+weight: 1
+title: Filebeat setup
+menu:
+  docs:
+    parent: "victorialogs-data-ingestion"
+    weight: 1
+---
+
 # Filebeat setup
 
 Specify [`output.elasicsearch`](https://www.elastic.co/guide/en/beats/filebeat/current/elasticsearch-output.html) section in the `filebeat.yml`

docs/VictoriaLogs/data-ingestion/Fluentbit.md

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-## Fluentbit setup
+---
+weight: 2
+title: Fluentbit setup
+menu:
+  docs:
+    parent: "victorialogs-data-ingestion"
+    weight: 2
+---
+
+# Fluentbit setup
 
 Specify [http output](https://docs.fluentbit.io/manual/pipeline/outputs/http) section in the `fluentbit.conf`
 for sending the collected logs to [VictoriaLogs](https://docs.victoriametrics.com/VictoriaLogs/):

docs/VictoriaLogs/data-ingestion/Logstash.md

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+---
+weight: 3
+title: Logstash setup
+menu:
+  docs:
+    parent: "victorialogs-data-ingestion"
+    weight: 3
+---
+
 # Logstash setup
 
 Specify [`output.elasticsearch`](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-elasticsearch.html) section in the `logstash.conf` file

docs/VictoriaLogs/data-ingestion/Vector.md

@@ -1,3 +1,12 @@
+---
+weight: 4
+title: Vector setup
+menu:
+  docs:
+    parent: "victorialogs-data-ingestion"
+    weight: 4
+---
+
 # Vector setup
 
 Specify [Elasticsearch sink type](https://vector.dev/docs/reference/configuration/sinks/elasticsearch/) in the `vector.toml`