UPDATES: updating subtitles to bold style

doc/deployment_guide/deployment_guide.md

@@ -3,7 +3,7 @@ The guide includes the details on configuring and installing the machine, instal
 configuring MicroK8s, and deploying and reporting the status of the TeraFlowSDN 
 controller.
 
-## 1.1. Configure your Machine
+## **1.1. Configure your Machine**
 
 In this section, we describe how to configure a machine (physical or virtual) to be used as the deployment, execution, and development environment for the ETSI TeraFlowSDN controller. Choose your preferred environment below and follow the instructions provided.
 
@@ -17,7 +17,7 @@ Virtualization platforms tested are:
 - [OpenStack'](#114-openstack1-1-4-openstack)
 - [Vagrant Box](#115-vagrant-box)
 
-### 1.1.1. Physical Server
+### **1.1.1. Physical Server**
 This page describes how to configure a physical server for running ETSI TeraFlowSDN(TFS) controller.
 
 <h3><u>Server Specifications</u></h3>
@@ -109,7 +109,7 @@ sudo apt-get dist-upgrade -y
 - If asked to restart services, restart the default ones proposed.
 - Restart the VM when the installation is completed.
 
-### 1.1.2. Oracle Virtual Box
+### **1.1.2. Oracle Virtual Box**
 
 This page describes how to configure a VM for running ETSI TeraFlowSDN(TFS) controller using [Oracle VirtualBox](https://www.virtualbox.org/). It has been tested with VirtualBox up to version 6.1.40 r154048.
 
@@ -207,7 +207,7 @@ sudo ./VBoxLinuxAdditions.run
 sudo reboot
 ```
 
-### 1.1.3. VMWare Fusion
+### **1.1.3. VMWare Fusion**
 
 This page describes how to configure a VM for running ETSI TeraFlowSDN(TFS) controller using [VMWare Fusion](https://www.vmware.com/products/fusion.html). It has been tested with VMWare Fusion version 12 and 13.
 
@@ -264,13 +264,13 @@ sudo apt-get update -y
 sudo apt-get dist-upgrade -y
 ```
 
-### 1.1.4. OpenStack
+### **1.1.4. OpenStack**
 
-### 1.1.5. Vagrant Box
+### **1.1.5. Vagrant Box**
 
 Other virtualization environments might be used; in that case, you will need to adapt these instructions to your particular case. If you want to contribute with details on how you used other hypervisors or platforms, [contact](https://labs.etsi.org/rep/tfs/controller/-/wikis/home#contact) the TFS team through Slack.
 
-## 1.2. Install MicroK8s
-## 1.3. Deploy TeraFlowSDN
-## 1.4. WebUI and Grafana Dashboards
-## 1.5. Show Deployment and Logs
+## **1.2. Install MicroK8s**
+## **1.3. Deploy TeraFlowSDN**
+## **1.4. WebUI and Grafana Dashboards**
+## **1.5. Show Deployment and Logs**