Update README.md

README.md

@@ -20,16 +20,13 @@ Install
 Modules 
 =======
 
-Most of these modulea are installed by default
-
-- [bapps](https://promethe.u-cergy.fr/blaar/bapps.git): Basic Applications for C/C++ with no dependency to manipulate blc_channels (find max, generate oscillators, ...)
-
-All the other modules have dependencies on different libraries.
+Most of these modules are installed by default (otherwise see below for installation)
 
+- [bapps](https://promethe.u-cergy.fr/blaar/bapps.git): Basic Applications for C/C++ with no dependency to manipulate blc_channels (find max, generate oscillators, ...). (no requirement)
 - [gnuplot](https://promethe.u-cergy.fr/blaar/gnuplot.git) Allows to make graphs from data of blc_channels (require gnuplot)
-- [gtk](https://promethe.u-cergy.fr/blaar/gtk.git) Provides a graphical user interface. For now, it displays images.
-- [png](https://promethe.u-cergy.fr/blaar/png.git) Saves and loads png images.
-- [sndfile](https://promethe.u-cergy.fr/blaar/sndfile.git) Reads and writes sound files in with many sound formats. 
+- [gtk](https://promethe.u-cergy.fr/blaar/gtk.git) Provides a graphical user interface. For now, it displays images. (require gtk)
+- [png](https://promethe.u-cergy.fr/blaar/png.git) Saves and loads png images. (require libpng)
+- [sndfile](https://promethe.u-cergy.fr/blaar/sndfile.git) Reads and writes sound files in with many sound formats (require libsndfile)
 
 Specific Linux
 --------------
@@ -64,6 +61,8 @@ Example, install 'fftw' package:
     git submodule add https://promthe.u-cergy.fr/blaar/fftw.git
     ./install fftw
 
+You need to have installed the required package. Usually indicated in the README.
+
 Update the installation
 -----------------------
 
@@ -87,7 +86,11 @@ Development
 blibs - Basic Libraries
 -----------------------
 
-These libraries are a set of basic tools simplifying programmation. The programmer keeps full control on the program. You have shortcuts for classical functionalities and very little abstractions. You can freely mix blibs and low level C/C++ functions.
+These libraries are a set of basic tools simplifying programmation.
+The programmer keeps full control on the program. You have shortcuts for classical functionalities and very little abstractions.
+You can freely mix blibs and low level C/C++ functions.
+
+### blc are basic libraries for C/C++ with no specific requirement
 
 - [blc_core](https://promethe.u-cergy.fr/blibs/blc_core) : Generic helpers in C or C++ used by all other blaar projects
 - [blc_channel](https://promethe.u-cergy.fr/blibs/blc_channel) : Tools to use shared memory in synchrone ( in test) and asynchrone mode