Add Nginx (#19373)

* Add Nginx

* Delete Nginx

* Add nginx

client/src/pages/guide/english/nginx/index.md

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+Installation of Nginx in Ubuntu
+Step 1: Update Apt-Get
+
+As always, we update and upgrade our package manager.
+
+`apt-get update && apt-get upgrade`
+
+Step 2: Install Nginx
+
+One simple command to install Nginx is all that is needed:
+
+`apt-get -y install nginx`