some more readmes

README.md

@@ -78,5 +78,10 @@ And that's it !
 ## Documentation
 
 [cl_parser](cl_parser/README.md)
+[colors](colors/README.md)
+[timers](timers/README.md)
+[parallel_manager](parallel_manager/README.md)
+
+
 :construction: Docs of the modules can be found [here](https://compose.gitlabpages.inria.fr/oldstack/cpp_tools/) (under construction)
 

colors/README.md

+# colors : simple colors for you terminal
+
+`colors` is a single header to put color in your terminal.
+
+# Usage
+
+```cpp
+#include <iostream>
+#include <cpp_tools/colors/colorized.hpp>
+...
+std::cout << cpp_tools::colors::blue << "some blue" << cpp_tools::colors::reset << '\n';
+...
+```
+# Available colors
+
+
+`black`
+`red`
+`green`
+`yellow`
+`blue`
+`magenta`
+`cyan`
+`white`
+`on_black`
+`on_red`
+`on_green`
+`on_yellow`
+`on_blue`
+`on_magenta`
+`on_cyan`
+`on_white`
+`reset`
+`bold`
+`faint`
+`italic`
+`underline`
+`underline_off`
+`slow_blink`
+`rapid_blink`
+`blink_off`
+`reverse`
+`overlined`

parallel_manager/README.md

+# parallel_manager : a helper class for parallelism
+
+:construction: under construction

timers/README.md

+# timers : a collection of helpful timers
+
+:construction: New timers will be added !
+
+# Simple timer example
+
+```cpp
+#include <iostream>
+#include <cpp_tools/timers/simple_timer.hpp>
+
+...
+auto main() -> int
+{
+    ...
+
+    // default is millisecond
+    cpp_tools::timers::timer time{};
+    // or cpp_tools::timers::timer<std::chrono::microseconds> time{}; 
+    // for timings in milliseconds etc ...
+
+    time.tic();
+    // some stuff to time...
+    
+    // directly : std::cout << " time elapsed : " << time.tac_and_elapsed() << "ms\n";
+    // or :
+
+    time.tac();
+    std::cout << " time elapsed : " << time.elapsed() << "ms\n";
+    ...
+}
+```