Update README.md

## Compilation

### Deployment with OpenWrt (e.g. Gl.iNet device)

- Step 1: Download the Gl.iNet SDK (see https://github.com/gl-inet/sdk)

- Step 1: Update your system

```

apt-get update -y && apt-get upgrade -y

apt-get install asciidoc bash bc binutils bzip2 fastjar flex gawk gcc genisoimage gettext git intltool jikespg libgtk2.0-dev libncurses5-dev libssl1.0-dev make mercurial patch perl-modules-5.26 python2.7-dev rsync ruby sdcc subversion unzip util-linux wget xsltproc zlib1g-dev zlib1g-dev time -y

```

- Step 2: Download the Gl.iNet SDK (see https://github.com/gl-inet/sdk)

```

git clone https://github.com/gl-inet/sdk.git gl_sdk

cd ./gl_sdk

```

- Step 2: List all available targets. We will use mt300n-v2 (target: ramips-1806) for the Gl.iNet mt300n-v2 Mango

- Step 3: List all available targets. We will use mt300n-v2 (target: ramips-1806) for the Gl.iNet mt300n-v2 Mango

```

./download.sh

./download.sh ramips-1806

```

- Step 3: Build the SDK for the Gl.iNet Mango

- Step 4: Build the SDK for the Gl.iNet Mango

```

./builder.sh -t ramips-1806 -d ./sdk/1806/ramips

```

- Step 4: Clone the ETSI ITS-bridge OpenWrt package

- Step 5: Clone the ETSI ITS-bridge OpenWrt package

```

cd ./sdk/1806/ramips

git clone https://forge.etsi.org/rep/plugtests/its-plugtests/its-bridge.git package/its-bridge

./scripts/feeds install libpcap

./scripts/feeds install libmicrohttpd

```

- Step 5: Update the configuration using menuconfig. In Utilites section, it_bridge shall be present, add it in the list of the package to be compiled

- Step 6: Update the configuration using menuconfig. In Utilites section, it_bridge shall be present, add it in the list of the package to be compiled

```

make menuconfig

```

- Step 6: Build the its_bridge package

- Step 7: Build the its_bridge package

```

make package/its_bridge/compile V=s

```

- Step 7: Install the package on the Gl.iNet mt300n-v2 Mango device

-- copy the package ```./bin/packages/mipsel_24kc/base/its_bridge_0.0.1-1_mipsel_24kc.ipk``` to the device using SSH access

-- execute ```opkg install its_bridge_0.0.1-1_mipsel_24kc.ipk``` to install the package

- Step 8: Install the package on the Gl.iNet mt300n-v2 Mango device

-- Step 1: Copy the package to the device using SSH access

```

./bin/packages/mipsel_24kc/base/its_bridge_0.0.1-1_mipsel_24kc.ipk

```

-- Step 2: Execute the following commands to install the package

```

opkg install its_bridge_0.0.1-1_mipsel_24kc.ipk

```

### Deployment on Linux box device (e.g. NanoPI R2S)

See script/install.sh for a complete installation: