a very little fix in chap 08

ch08_registers.md

@@ -103,7 +103,7 @@ line two
 line one
 ```
 
-With your cursor on "line three", delete them one by one with `dd`. Once all lines are deleted, register 1 should contain "line one" (most recent), register two "line two" (second most recent), and register three "line three" (oldest. To get the content from register one, do `"1p`.
+With your cursor on "line three", delete them one by one with `dd`. Once all lines are deleted, register 1 should contain "line one" (most recent), register two "line two" (second most recent), and register three "line three" (oldest). To get the content from register one, do `"1p`.
 
 As a side note, these numbered registers are automatically incremented when using the dot command. If your numbered register one (`"1`) contains "line one", register two (`"2`) "line two", and register three (`"3`) "line three", you can paste them sequentially with this trick:
 - Do `"1P` to paste the content from the numbered register one ("1).