updated install.md

docs/install.md

 # Contents
 
 * [Introduction](#introduction)
-* [Installing the required dependencies](#installing-the-required-dependencies)
 * [Installing nexus-server for production](#installing-nexus-server-for-production)
 * [Installing nexus-server for development](#installing-nexus-server-for-development)
 * [Building and running nexus clients](#building-and-running-nexus-clients)
 * [Building and deploying nexus live exam OS](#building-and-deploying-nexus-live-exam-OS)
+* [Running validation tests](#running-validation-tests)
 * [Server firewall configuration](#server-firewall-configuration)
 * [Creating initial templates](#creating-initial-templates)
 * [Copy a template from another server](#copy-a-template-from-another-server)
 * [Additional tools](#additional-tools)
-* [Details about requirements](#details-about-requirements)
+* [Building QEMU from source](#building-qemu-from-source)
+* [Building remote-viewer from source](#building-remote-viewer-from-source)
+* [Server software requirements](#server-software-requirements)
 
 <!-- ============================================================================================================== -->
 # Introduction
@@ -289,7 +291,6 @@ make clean_client
 ```
 
 <!-- ============================================================================================================== -->
-
 # Building and deploying nexus live exam OS
 
 TODO
@@ -393,7 +394,8 @@ rsync -P --sparse -r 4913a2bb-edfe-4dfe-af53-38197a44523b  destination_server:/p
 
 The `genpwd` tools, located in `PREFIX/nexus-server/bin/`, can be used to obtain the hash of a password typed on the keyboard. This can be useful when wanting to update a password by directly editing the config file that stores encrypted user passwords (`PREFIX/nexus-server/config/users.json`).
 
-## Building QEMU from source
+<!-- ============================================================================================================== -->
+# Building QEMU from source
 
 1. Retrieve QEMU' source code from [https://www.qemu.org/download/](https://www.qemu.org/download/)
 1. Decompress the archive and go into QEMU' source directory:
@@ -418,7 +420,8 @@ The `genpwd` tools, located in `PREFIX/nexus-server/bin/`, can be used to obtain
    make install
    ```
 
-## Building remote-viewer from source
+<!-- ============================================================================================================== -->
+# Building remote-viewer from source
 
 1. Clone virt-viewer source code from gitlab:
    ```sh
@@ -433,11 +436,11 @@ The `genpwd` tools, located in `PREFIX/nexus-server/bin/`, can be used to obtain
    meson setup build
    meson configure build -Ddefault_library=static -Ddebug=false -Dbuildtype=release -Dstrip=true -Dlibvirt=disabled -Dovirt=disabled -Dvnc=disabled -Dvte=disabled
    cd build
-   meson compile
+   meson compile remote-viewer
    ```
 
 <!-- ============================================================================================================== -->
-# Details about requirements
+# Server software requirements
 
 ## Linux kernel with KVM