Update README.md

README.md

@@ -289,9 +289,9 @@
 
 ### understanding redirection 
 * Basic
-    * < = 0<, << = 0<<, > = 1>, >> = 1>>, 2> = 2>>
-    * &>, 2>&1, &>>
-    * <<<
+    * "<" = "0<", "<<" = "0<<", ">" = "1>", ">>" = "1>>", "2>" = "2>>"
+    * "&>", "2>&1", "&>>"
+    * "<<<"
 * Position of redirection
     * echo hello > /tmp/out - hello를 tmp/out에 저장. <br>
       = echo > /tmp/out hello <br>