diff --git a/README.md b/README.md
index cb50920..f202fb0 100644
--- a/README.md
+++ b/README.md
@@ -14,13 +14,8 @@ Dependencies are best found by running the programs.
 
 To see the help page of each tool, run the ./README script
 
-## Installation
+# Installation
 
-1. `mkdir -p ~/lib`
-2. `hg clone https://bitbucket.org/MoonQ/tools ~/lib/tools`
-3. `. $HOME/lib/tools/rc`
-
-It is best to add the last line in your ~/.bashrc
 
 ## Dependencies
 
@@ -28,9 +23,26 @@ Many of the tools use common unix tools. Some extra tools are required. Here are
 the installation commands.
 
 ```
-sudo apt-get install sqlite3 python python-magic python-pip python-gtk2 sc \
+sudo apt-get install mercurial sqlite3 python python-magic python-pip python-gtk2 sc \
   gnuplot wget vim rsync curl pv
-pip install --use csvkit
+pip install csvkit
 
 ```
 
+## Installation in user home
+
+1. `mkdir -p ~/lib`
+2. `hg clone https://bitbucket.org/MoonQ/tools ~/lib/tools`
+3. `. $HOME/lib/tools/rc`
+
+It is best to add the last line in your ~/.bashrc
+
+
+## Systemwide installation
+
+1. `hg clone https://bitbucket.org/MoonQ/tools ~/lib/tools /usr/local/share/q-tools`
+2. `echo '[ -e /usr/local/share/q-tools/rc ] && . /usr/local/share/q-tools/rc' >> /etc/profile.d/q-tools.sh`
+3. `ln -s /usr/local/share/q-tools/rc  /etc/cron.weekly/q-tools`
+
+The last step ensures weekly updates 
+