improvements

README.md

@@ -107,30 +107,14 @@ $ bash getqwt.sh
 
 For further information refer to [this](http://qwt.sourceforge.net/)
 
-- python3.5 or 3.6
+- python3.5 or 3.6 and other dependencies
 
-  In Debian like distros:
-  
-  ```bash
-  $ sudo apt-get install python3.5 python3.5-dev
-  ```
+You can use [install.sh](./install.sh) in order to install dependencies. First
+read and understand the script than execute it.
 
-- Others
-   
-  Some basic libraries may be already installed in your system. If not you can
-  install the following packages or equivalent ones for your distro. In Debian
-  like distros:
-
-  ```bash
-  $ sudo apt-get install libc6
-  $ sudo apt-get install libstdc++6
-  $ sudo apt-get install sqlite3
-  $ sudo apt-get install libsqlite3-dev
-  $ sudo apt-get install libqt5gui5
-  $ sudo apt-get install libqt5sql5
-  $ sudo apt-get install libqt5widgets5
-  $ sudo apt-get install libqt5core5a
-  ```
+```bash
+$ bash install.sh
+```
 
 To grant flexibility to the user the paths where to find some essential
 libraries and headers can be specified with environment variables. You can add