update README column

Author: Artur-man

README.md

@@ -11,12 +11,15 @@ consistently across all pyramid levels
 
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 ## What are image pyramids?
+
 An **image pyramid** is a multi‑scale representation built by repeatedly smoothing and down‑sampling an image (e.g. Gaussian/Laplacian pyramids). 
 Pyramids make zooming, visualization, and scale‑aware analysis efficient – a staple in digital pathology and large microscopy images.
 
 ## Installation
+
 You can install `r Biocpkg("ImageArray")` from Bioconductor with:
 ``` r
 if (!requireNamespace("BiocManager", quietly = TRUE)) {
@@ -25,7 +28,7 @@ if (!requireNamespace("BiocManager", quietly = TRUE)) {
 BiocManager::install("ImageArray")
 ```
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 <img src="inst/extdata/dz-pyramid.png" alt="ImageArray logo" width="100%" hspace="10">
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 </tr>