diff --git a/routes/routes.go b/routes/routes.go
index 1034f2f..3124d1b 100644
--- a/routes/routes.go
+++ b/routes/routes.go
@@ -110,8 +110,11 @@ func (d *deps) RepoIndex(w http.ResponseWriter, r *http.Request) {
 		content, _ := gr.FileContent(readme)
 		if len(content) > 0 {
 			switch ext {
-			case ".md":
-				unsafe := blackfriday.Run([]byte(content), blackfriday.WithExtensions(blackfriday.CommonExtensions))
+			case ".md", ".mkd", ".markdown":
+				unsafe := blackfriday.Run(
+					[]byte(content),
+					blackfriday.WithExtensions(blackfriday.CommonExtensions),
+				)
 				html := bluemonday.UGCPolicy().SanitizeBytes(unsafe)
 				readmeContent = template.HTML(html)
 			default:
diff --git a/static/style.css b/static/style.css
index b8dd834..19c0891 100644
--- a/static/style.css
+++ b/static/style.css
@@ -162,6 +162,10 @@ a:hover {
   padding: revert;
 }
 
+.readme img {
+  max-width: 100%;
+}
+
 .diff {
   margin: 1rem 0 1rem 0;
   padding: 1rem 0 1rem 0;