Update error-handling.md

Fix two typos while `io::stdin().read_line()` returns `Result` actually

Signed-off-by: acgtyrant <acgtyrant@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/doc/trpl/error-handling.md b/src/doc/trpl/error-handling.md
index e4809214bd4..95b39a66063 100644
--- a/src/doc/trpl/error-handling.md
+++ b/src/doc/trpl/error-handling.md
@@ -214,7 +214,7 @@ we can use the `unwrap()` method:
 io::stdin().read_line(&mut buffer).unwrap();
 ```
 
-`unwrap()` will `panic!` if the `Option` is `None`. This basically says "Give
+`unwrap()` will `panic!` if the `Result` is `Err`. This basically says "Give
 me the value, and if something goes wrong, just crash." This is less reliable
 than matching the error and attempting to recover, but is also significantly
 shorter. Sometimes, just crashing is appropriate.