Update README.md

- Clone the ETSI MEC Testing Framework project into $HOME/dev folder

```sh

$ git clone --recurse-submodules --branch TTF012_Mec https://forge.etsi.org/rep/mec/gs032p3-ttcn-test-suite.git ./TTF012_Mec

$ cd /home/etsi/dev/TTF012_Mec/ttcn/LibIts

$ rm -fr t3q

$ cd ttcn && rm -fr Common

$ git clone --recurse-submodules --branch gs032p3-ttcn-test-suite https://forge.etsi.org/rep/mec/gs032p3-ttcn-test-suite.git ./gs032p3-ttcn-test-suite

$ cd /home/etsi/dev/gs032p3-ttcn-test-suite/titan-test-system-framework

$ git checkout devel

$ cd /home/etsi/dev/gs032p3-ttcn-test-suite/titan-test-system-framework/ttcn/LibHttp

$ ln -sf module_mec.mk module.mk

```

- Apply patches

```sh

$ cd /home/etsi/dev/TTF012_Mec

$ cd /home/etsi/dev/gs032p3-ttcn-test-suite

$ cp ./ttcn/patch_lib_common_titan/module.mk ./ttcn/LibCommon/

$ cp ./ttcn/patch_lib_common_titan/*.ttcn ./ttcn/LibCommon/

$ cp ./ttcn/patch_lib_http/*.ttcn ./ttcn/LibIts/ttcn/Http/

$ cp  ./ttcn/patch_lib_its/module.mk ./ttcn/LibIts/

```

- Update your default environment with the content of the script $HOME/dev/TTF012_Mec/scripts/devenv.bash.ubuntu

- Update your default environment with the content of the script $HOME/dev/gs032p3-ttcn-test-suite/scripts/devenv.bash.ubuntu

- Switch to the next clause (Usage)

- Start eclipse using a new workspace, (e.g. with the name workspace_titan)

- Download and follow the steps to install Eclipse plugins for TITAN, accessible [here]{https://www.eclipse.org/downloads/download.php?file=/titan/Eclipse_installationguide.pdf}

- Open the workspace_titan

- Create a new TITAN project (e.g. TTF012_Mec)

- Create a new TITAN project (e.g. gs032p3-ttcn-test-suite)

<TODO>

Procedure in TITAN command line:

- Open several SSH session (PuTTY...)

- Change to the directory ~/dev/TTF012_Mec/src/AtsMec/objs

- Change to the directory ~/dev/gs032p3-ttcn-test-suite/src/AtsMec/objs

- Build the test suite AtsMec

```sh

$ cd ~/dev/TTF012_Mec/ && export ATS=AtsMec

$ cd ~/dev/gs032p3-ttcn-test-suite/ && export ATS=AtsMec

$ make

...

```

- To run the test suite, execute the following command:

```sh

$ cd ~/dev/TTF012_Mec/scripts/

$ cd ~/dev/gs032p3-ttcn-test-suite/scripts/

$ ./run-all.bash

...

```