diff --git a/docs/Cluster-VictoriaMetrics.md b/docs/Cluster-VictoriaMetrics.md
index ae7f0a1d0..fc4d84c93 100644
--- a/docs/Cluster-VictoriaMetrics.md
+++ b/docs/Cluster-VictoriaMetrics.md
@@ -1,3 +1,5 @@
+# Cluster version of VictoriaMetrics
+
 VictoriaMetrics is fast, cost-effective and scalable time series database. It can be used as a long-term remote storage for Prometheus.
 
 It is recommended using [single-node version](https://github.com/VictoriaMetrics/VictoriaMetrics) instead of cluster version
diff --git a/docs/Home.md b/docs/Home.md
index ca34ec64d..7ec7c1508 100644
--- a/docs/Home.md
+++ b/docs/Home.md
@@ -1,4 +1,4 @@
-## VictoriaMetrics docs
+# VictoriaMetrics docs
 
 * [Quick start](Quick-Start)
 * [`WITH` templates playground](https://play.victoriametrics.com/promql/expand-with-exprs)
diff --git a/docs/Quick-Start.md b/docs/Quick-Start.md
index 86d1ae931..01530a034 100644
--- a/docs/Quick-Start.md
+++ b/docs/Quick-Start.md
@@ -1,3 +1,5 @@
+# Quick Start
+
 1. Download the latest VictoriaMetrics release from [releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases),
    from [Docker hub](https://hub.docker.com/r/valyala/victoria-metrics/)
    or [build it from sources](https://github.com/VictoriaMetrics/VictoriaMetrics/wiki/Single-server-VictoriaMetrics#how-to-build-from-sources).
diff --git a/docs/Release-Guide.md b/docs/Release-Guide.md
index 215bbce95..5a0959a44 100644
--- a/docs/Release-Guide.md
+++ b/docs/Release-Guide.md
@@ -1,4 +1,4 @@
-## Release version and Docker images
+# Release version and Docker images
 
 1. Create release tag with `git tag v1.xx.y`.
 2. Run `make release` for creating `*.tar.gz` release archive with the corresponding `_checksums.txt` inside `bin` directory.
diff --git a/docs/Single-server-VictoriaMetrics.md b/docs/Single-server-VictoriaMetrics.md
index 58c5c5b57..97f162a4c 100644
--- a/docs/Single-server-VictoriaMetrics.md
+++ b/docs/Single-server-VictoriaMetrics.md
@@ -1,3 +1,5 @@
+# Single-node VictoriaMetrics
+
 VictoriaMetrics is fast, cost-effective and scalable time-series database. It can be used as long-term remote storage for Prometheus.
 It is available in [binary releases](https://github.com/VictoriaMetrics/VictoriaMetrics/releases),
 [docker images](https://hub.docker.com/r/victoriametrics/victoria-metrics/) and