When cloning the repository to a unix like operating system, e.g. Linux, the files come up as executable. Please change permissions from 0755 (-rwxr-xr-x) to 0644 (-rw-r--r--).
Here's a diff:
diff --git a/Readme.adoc b/Readme.adoc
old mode 100755
new mode 100644
diff --git a/css/dividends_scanner.css b/css/dividends_scanner.css
old mode 100755
new mode 100644
diff --git a/html/modals/dividends_scanner.html b/html/modals/dividends_scanner.html
old mode 100755
new mode 100644
diff --git a/html/pages/dividends_scanner.html b/html/pages/dividends_scanner.html
old mode 100755
new mode 100644
diff --git a/js/nrs.dividends_scanner.js b/js/nrs.dividends_scanner.js
old mode 100755
new mode 100644
diff --git a/manifest.json b/manifest.json
old mode 100755
new mode 100644