pablo users link in different tab

Author: marcocisternino

INSTALL.md

@@ -60,4 +60,4 @@ If you have just built PABLO, its headers will be available at `PABLO/include/`
 If you have also installed PABLO, its headers will be available at `/my/installation/folder/PABLO/include/` folder and a static library `libPABLO.a` will be available at `/my/installation/folder/lib/` folder.
 
 ## Help
-For any problem, please join the [PABLO Users Google Group](https://groups.google.com/forum/#!forum/pablo-users) and post your requests.
+For any problem, please join the <a href="https://groups.google.com/forum/#!forum/pablo-users" target="pablousers">PABLO Users Google Group</a> and post your requests.

README.md

@@ -20,5 +20,5 @@ One of the main feature of PABLO is the low memory consumption in the basic conf
 Additional features available in PABLO are: 2:1 balancing between octants and a easy way to generate and store intersections between octants.
 
 ##Installation
-Please, see <a href="https://github.com/optimad/PABLO/blob/master/INSTALL.md" target="_blank">INSTALL.md</a> for installation instructions.
+Please, see [INSTALL.md](https://github.com/optimad/PABLO/blob/master/INSTALL.md) for installation instructions.