diff --git a/_common.R b/_common.R
index 6cda95b..cc501e0 100644
--- a/_common.R
+++ b/_common.R
@@ -31,7 +31,7 @@ library(tidyverse)
 knitr::write_bib(c(.packages(), 'base','bookdown', 'knitr','rmarkdown'), 'library/packages.bib')
 
 knitr::opts_chunk$set(
-  echo  =TRUE,
+  echo  =FALSE,
   message  =FALSE,
   warning  =FALSE,
   cache  =FALSE,
diff --git a/_output.yml b/_output.yml
index abf53bf..5d39bec 100644
--- a/_output.yml
+++ b/_output.yml
@@ -8,6 +8,7 @@ bookdown::bs4_book:
   split_bib: true
   repo:
     base: https://github.com/tmbuza/imap-download-sra-reads.git
+    edit: https://github.com/tmbuza/imap-download-sra-reads.git/blob/gh-pages/%s
     branch: gh-pages
     icon: "fas fa-air-freshener"
   theme: