Update README.md

README.md

@@ -4,7 +4,7 @@ An R package for constructing and Analysing of Protein-Protein Interactions (PPI
 
 ## Installation
 
-If you are on a linux os, We assume that R, Python version 2.7 and C are installed, prior to any attempt to install the package appinetwork. 
+If you are on a **linux** os, We assume that R, Python version 2.7 and C are installed, prior to any attempt to install the package appinetwork. 
 
 To install this package from git, you need the devtools package using the following command in R :
 
@@ -23,7 +23,7 @@ Now you can install our package from Gitlab using the following command in R :
     
 Installation on **Windows** and **MacOs** might be more difficult.
 
-If you are on **windows**, you'll need to install [Rtools](https://cran.r-project.org/bin/windows/Rtools/rtools40.html) first (the link is for R4.0 and up, for prior R version find go to this [link](https://cran.r-project.org/bin/windows/Rtools/history.html)).
+If you are on **windows**, you'll need to install [Rtools](https://cran.r-project.org/bin/windows/Rtools/rtools40.html) first (the link is for R4.0 and up, for prior R version go to this [link](https://cran.r-project.org/bin/windows/Rtools/history.html)).
 Then you'll need to enter the following commands :   
     
     install.packages("devtools")