update readme

README.md

@@ -13,6 +13,7 @@ Let us denote by SRC_DIR the root directory of the gitlab repository.
       (cgal master, May 17th 2022)
    * [Boost](https://www.boost.org/), with components system and filesystem
    * [Qt5](https://www.qt.io/)
+   * [Assimp]()
    * [TetGen](https://wias-berlin.de/software/index.jsp?id=TetGen&lang=1)
 
 # 2. List of commands for Ubuntu 22.04
@@ -29,7 +30,7 @@ Installation commands:
    * apt-get install g++ cmake git
    * apt-get install libqt5opengl5-dev libqt5svg5-dev qtbase5-dev qtscript5-dev
    * apt-get install libboost-dev libboost-program-options-dev libboost-system-dev libboost-thread-dev
-   * apt-get install libgmp-dev libmpfr-dev zlib1g-dev libtet1.5-dev
+   * apt-get install libgmp-dev libmpfr-dev zlib1g-dev libtet1.5-dev libassimp-dev
    * cd
    * git clone https://github.com/CGAL/cgal.git
    * cd cgal