fix typo

DESCRIPTION

@@ -1,6 +1,13 @@
 Package: BiocBook
 Title: Write, containerize, publish and versionize Quarto books with Bioconductor
-Description: What the package does (one paragraph).
+Description: 
+    A BiocBook can be created by authors (e.g. R developers, but also 
+    scientists, teachers, communicators, …) who wish to 1) write (compile a 
+    body of biological and/or bioinformatics knowledge), 2) containerize
+    (provide Docker images to reproduce the examples illustrated in the compendium), 
+    3) publish (deploy an online book to disseminate the compendium), and 4) 
+    versionize (automatically generate specific online book versions 
+    and Docker images for specific Bioconductor releases). 
 Version: 0.99.0
 Date: 2023-08-03
 Authors@R: 
@@ -37,7 +44,7 @@ Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.2.3
 biocViews: 
-	Infrastructure, 
+    Infrastructure, 
     ReportWriting, 
     Software
 License: MIT + file LICENSE

pages/Chapter-2.qmd

@@ -64,7 +64,7 @@ Creating a `BiocBook` in `R` is straightforward with the `BiocBook` package.
 
 ```{r}
 #| eval: false
-if (require(BiocBook)) remotes::install_github('js2264/BiocBook')
+if (!require(BiocBook)) remotes::install_github('js2264/BiocBook')
 library(BiocBook)
 BiocBook_init("BiocBook")
 ```