Fixed formatting (#10485)

Co-authored-by: John Olheiser <john.olheiser@gmail.com>

docs/content/doc/installation/from-source.en-us.md

@@ -123,7 +123,7 @@ If pre-built frontend files are present it is possible to only build the backend
 
 ```bash
 TAGS="bindata" make backend
-``
+```
 
 ## Test