Updates preload to only read .slo files and fixes typo in readme

README.md

@@ -509,7 +509,7 @@ A Makefile is available. Running `make` will build in the local directory. Runni
 
 ## Running
 
-All of these assume slosh is on your `$PATH`:
+All of these assume slope is on your `$PATH`:
 
 To run the repl:
 

helpers.go

@@ -409,16 +409,17 @@ func getPreloadDir() string {
 }
 
 func preloadFiles() {
-	files, err := ioutil.ReadDir(PreloadDir)
+	files, err := filepath.Glob(filepath.Join(PreloadDir, "*.slo"))
 	if err != nil {
 		fmt.Fprint(os.Stderr, "Could not preload files. Reading preload directory failed\n")
 	}
 	exp := make([]expression, len(files))
 	for i := range files {
-		if files[i].IsDir() {
+		f, err := os.Stat(files[i])
+		if err != nil || f.IsDir() {
 			continue
 		}
-		exp[i] = filepath.Join(PreloadDir, files[i].Name())
+		exp[i] = filepath.Join(files[i])
 	}
 	loadFiles(exp)
 }