use devel BiocStickers branch

Author: LiNk-NY

index.Rmd

@@ -19,7 +19,7 @@ description: "This is a minimal example of using the bookdown package to write a
 # Welcome {-}
 
 ```{r, fig.align='center', echo=FALSE, out.height="200px"}
-knitr::include_graphics("https://raw.githubusercontent.com/Bioconductor/BiocStickers/master/Bioconductor/Bioconductor.png")
+knitr::include_graphics("https://raw.githubusercontent.com/Bioconductor/BiocStickers/devel/Bioconductor/Bioconductor.png")
 ```
 
 ## Introduction {.unnumbered #intro}