[FEAT] Update install.sh script.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

Author: amlel-el-mahrouss

install.sh

@@ -11,5 +11,8 @@ sudo apt install build-essential cmake libboost-dev
 git clone --recurse-submodules -j8 git@github.com:ocl-foss-org/ocl.git
 cd ocl
 cmake -B build
-echo "INSTALLING THE OPEN C++ LIBRARIES..."
-sudo cmake --install build
+echo "==> INSTALLING THE OPEN C++ LIBRARIES..."
+sudo cmake --install build
+
+echo "==> WELCOME TO OPEN C++ LIBRARIES."
+echo "==> THANK YOU FOR USING THE OCL!"