Merge branch '41600-wider-project-readme-on-fixed-layout' into 'master'

Too narrow project READMEs on fixed layout

Closes #41600

See merge request gitlab-org/gitlab-ce!16181

app/assets/stylesheets/framework/files.scss

@@ -18,7 +18,7 @@
     margin: $gl-padding 0;
 
     &.limited-width-container .file-content {
-      max-width: $limited-layout-width-sm;
+      max-width: $limited-layout-width;
       margin-left: auto;
       margin-right: auto;
     }

changelogs/unreleased/41600-wider-project-readme-on-fixed-layout.yml

+---
+title: Make project README containers wider on fixed layout
+merge_request: 16181
+author: Takuya Noguchi
+type: fixed