Update readme

src/tracker/README.md

@@ -12,7 +12,7 @@ By: Assistants of IF3230 - Parallel and Distributed Systems
 
 ** Environment Set **
 
-- Set the following lines to ```/etc/profile```:
+Set the following lines to ```/etc/profile```:
 
     export PATH=$PATH:/usr/local/go/bin
 
@@ -38,7 +38,3 @@ By: Assistants of IF3230 - Parallel and Distributed Systems
 ## How to Run
 
 - In release environment, please use ```nohup go run main.go & > my.log 2>&1&``` for running tracker process in background. After that, use ```echo $! > save_pid.txt``` to get Process ID.
-
-## Additional Information
-
-- Developer note: On release (32.46), use account 'freedomofkeima' for MySQL username and '167.205.32.46' for IP address.