Update README.md

README.md

-#Riricdata
+# Riricdata
 
-##Overview
+## Overview
 
 Riricdata is an API of IRIC_data which allow to download and upload files.
 
-##Installation
+## Installation
 
 ```{r, eval = FALSE}
 # install.packages("devtools")
 devtools::install_gitlab("bioinfo_iric/riricdata", host="https://gitlab.iric.ca/")
 ```
 
-##Usage
+## Usage
 
 ```{r, eval = FALSE}
 library(Riricdata)