mise a la norme et ajout de ressources dans readme

README.md

@@ -1,29 +1,25 @@
-# README #
+# MINITALK
 
-This README would normally document whatever steps are necessary to get your application up and running.
+### how to use :
 
-### What is this repository for? ###
+first launch server :
+```
+./server
+```
+it will print a line with its own pid, and an empty line below
+if you want to terminate the program hit `ctrl-c`
 
-* Quick summary
-* Version
-* [Learn Markdown](https://bitbucket.org/tutorials/markdowndemo)
+then in another window launch the client, with two arguments :
+```
+./client [SERVER PID] [string]
+```
+[SERVER PID] is the pid number printed by the server
+[string] is whatever you want to write, surrounded by `"` if you want to include spaces : `"a random phrase"`
 
-### How do I get set up? ###
+### ressources
 
-* Summary of set up
-* Configuration
-* Dependencies
-* Database configuration
-* How to run tests
-* Deployment instructions
-
-### Contribution guidelines ###
-
-* Writing tests
-* Code review
-* Other guidelines
-
-### Who do I talk to? ###
-
-* Repo owner or admin
-* Other community or team contact
+- **use of getpid** : https://www.includehelp.com/c/getpid-and-getppid-functions-in-c-linux.aspx
+- **use of signal** : https://linuxhint.com/signal_handlers_c_programming_language
+- **use of sigaction** : https://stackoverflow.com/a/17572787/9497573
+- **standard signal vs real time signals (with queue option)** : https://www.softprayog.in/programming/posix-real-time-signals-in-linux
+- **test time of functions in program** : https://stackoverflow.com/a/5833240/9497573