update readme

README.md

 ### Prerequisites
 ```
-$ yum install -y git cmake3 boost-devel librdkafka-devel openssl-devel redis hiredis-devel json-devel devtoolset-12 yaml-cpp-devel mysql-community-server mysql-connector-c++-devel
+$ dnf localinstall https://dev.mysql.com/get/mysql80-community-release-el9-5.noarch.rpm 
+$ dnf install -y gcc g++ git cmake boost-devel librdkafka-devel openssl-devel redis hiredis-devel json-devel yaml-cpp-devel mysql-community-server mysql-connector-c++-devel
 $ echo 'export BIAS_PREFIX=$HOME/BIAS' >> ~/.bashrc
-$ echo 'export PATH="/opt/rh/devtoolset-12/root/usr/bin:$PATH"' >> ~/.bashrc
-	or use $scl enable devtoolset-12 'bash'
 $ source $HOME/.bashrc
 ```
 ### Clone and download submodules
 ```
-$ git clone https://www.ict.inaf.it/gitlab/bias/daqs/astri-daq.git
-$ cd astri-daq
-$ git submodule update --recursive --init
+$ 'cd to the project dir'
+$ git submodule update --init --recursive 
+
 ```
 ### Prepare BIAS db
 ```
 Execute 'createBiasDB.sql' script
-$ mysql -u root -p
+$ mysql -u bias -p
 	source ./createBiasDB.sql;
 
 ```
@@ -23,12 +22,12 @@ $ mysql -u root -p
 ```
 $ mkdir build
 $ cd build
-$ cmake3 -DCMAKE_INSTALL_PREFIX=$BIAS_PREFIX ..
+$ cmake -DCMAKE_INSTALL_PREFIX=$BIAS_PREFIX ..
 $ make all
 $ make install
 ```
 
-### RUN THE RECEIVER
+### RUN
 ```
 $ cd $BIAS_PREFIX/bin
 $ ./AstriDAQ.lnx