Change max-width to 55em

Author: hw0lff

Diff for: scripts/build.sh

@@ -11,6 +11,7 @@ pandoc_opts=(
     --standalone
     --from markdown --to html
     --metadata title='Reference Documentation for Rust Analyzer Options'
+    --metadata maxwidth='55em'
     --template "$repo_dir/pandoc.html.template"
     -V "date-meta=$(date +%F)"
 )
@@ -104,4 +105,4 @@ if [[ $# -eq 1 ]]; then
 fi
 
 usage
-exit 1
+exit 1