Fix few markdown lint warnings

README.md

@@ -2,7 +2,6 @@
 
 <a target="_blank" href="https://github.com/louislam/uptime-kuma"><img src="https://img.shields.io/github/stars/louislam/uptime-kuma" /></a> <a target="_blank" href="https://hub.docker.com/r/louislam/uptime-kuma"><img src="https://img.shields.io/docker/pulls/louislam/uptime-kuma" /></a> <a target="_blank" href="https://hub.docker.com/r/louislam/uptime-kuma"><img src="https://img.shields.io/docker/v/louislam/uptime-kuma/latest?label=docker%20image%20ver." /></a> <a target="_blank" href="https://github.com/louislam/uptime-kuma"><img src="https://img.shields.io/github/last-commit/louislam/uptime-kuma" /></a>
 
-
 <div align="center" width="100%">
     <img src="./public/icon.svg" width="128" alt="" />
 </div>
@@ -11,16 +10,16 @@ It is a self-hosted monitoring tool like "Uptime Robot".
 
 <img src="https://louislam.net/uptimekuma/1.jpg" width="512" alt="" />
 
-# Features
+## Features
 
 * Monitoring uptime for HTTP(s) / TCP / Ping.
 * Fancy, Reactive, Fast UI/UX.
 * Notifications via Webhook, Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP) and more by Apprise.
 * 20 seconds interval.
 
-# How to Use
+## How to Use
 
-## Docker
+### Docker
 
 ```bash
 # Create a volume
@@ -38,7 +37,7 @@ Change Port and Volume
 docker run -d --restart=always -p <YOUR_PORT>:3001 -v <YOUR_DIR OR VOLUME>:/app/data --name uptime-kuma louislam/uptime-kuma:1
 ```
 
-## Without Docker
+### Without Docker
 
 Required Tools: Node.js >= 14, git and pm2.
 
@@ -50,7 +49,7 @@ npm run setup
 # Option 1. Try it
 npm run start-server
 
-# (Recommended) 
+# (Recommended)
 # Option 2. Run in background using PM2
 # Install PM2 if you don't have: npm install pm2 -g
 pm2 start npm --name uptime-kuma -- run start-server
@@ -70,8 +69,7 @@ pm2 stop uptime-kuma
 
 Browse to http://localhost:3001 after started.
 
-
-## (Optional) One more step for Reverse Proxy
+### (Optional) One more step for Reverse Proxy
 
 This is optional for someone who want to do reverse proxy.
 
@@ -80,7 +78,7 @@ Unlikely other web apps, Uptime Kuma is based on WebSocket. You need two more he
 Please read wiki for more info:
 https://github.com/louislam/uptime-kuma/wiki/Reverse-Proxy
 
-## One-click Deploy
+### One-click Deploy
 
 <!---
 Abort. Heroku instance killed the server.js if idle, stupid.
@@ -89,13 +87,14 @@ Abort. Heroku instance killed the server.js if idle, stupid.
 
 [![Deploy to DO](https://www.deploytodo.com/do-btn-blue.svg)](https://cloud.digitalocean.com/apps/new?repo=https://github.com/louislam/uptime-kuma/tree/master&refcode=e2c7eb658434)
 
-# How to Update
+## How to Update
 
 ### Docker
 
 Re-pull the latest docker image and create another container with the same volume.
 
 For someone who used my "How-to-use" commands to install Uptime Kuma, you can update by this:
+
 ```bash
 docker pull uptime-kuma:1
 docker stop uptime-kuma
@@ -115,12 +114,12 @@ npm run build
 pm2 restart uptime-kuma
 ```
 
-# What's Next?
+## What's Next?
 
 I will mark requests/issues to the next milestone.
 https://github.com/louislam/uptime-kuma/milestones
 
-# More Screenshots
+## More Screenshots
 
 Settings Page:
 
@@ -130,8 +129,7 @@ Telegram Notification Sample:
 
 <img src="https://louislam.net/uptimekuma/3.jpg" width="400" alt="" />
 
-
-# Motivation
+## Motivation
 
 * I was looking for a self-hosted monitoring tool like "Uptime Robot", but it is hard to find a suitable one. One of the close one is statping. Unfortunately, it is not stable and unmaintained.
 * Want to build a fancy UI.
@@ -140,11 +138,9 @@ Telegram Notification Sample:
 * Try to use WebSocket with SPA instead of REST API.
 * Deploy my first Docker image to Docker Hub.
 
-
 If you love this project, please consider giving me a ⭐.
 
-
-# Contribute
+## Contribute
 
 If you want to report a bug or request a new feature. Free feel to open a new issue.