Fix typo

Author: tangbao

docs/mscs/adjusting-world-server-properties/forge.md

@@ -121,7 +121,7 @@ sed -i "s|libraries|$(pwd)/libraries|g" libraries/net/minecraftforge/forge/*/uni
 
 <span markdown='span'>`sed -i "s|\"\$@|--nogui &|g" run.sh`: This adds `--nogui ` in front of `"$@`, with `&` being the matched pattern.</span><br>
 
-<span markdown='span'>`sed -i "s|libraries|$(pwd)/libraries|g" run.sh`: This replace `@libraries/net/minecraftforge/forge/1.17.1-37.1.1/unix_args.txt` with its full directory path in the `bash.sh` file.</span><br>
+<span markdown='span'>`sed -i "s|libraries|$(pwd)/libraries|g" run.sh`: This replaces `@libraries/net/minecraftforge/forge/1.17.1-37.1.1/unix_args.txt` with its full directory path in the `bash.sh` file.</span><br>
 
 <span markdown='span'>`sed -i "s|libraries|$(pwd)/libraries|g" libraries/net/minecraftforge/forge/*/unix_args.txt`: This adds the current path to all occurences of the word libraries in the `unix_args.txt` file. Because the directory contains the forge version (for example `1.17.1-37.1.1`), `*` is used as a wildcard.</span>