fix typos in examples/README.md
diff --git a/examples/README.md b/examples/README.md
old mode 100644
new mode 100755
index 3eb6352..2378ff6
--- a/examples/README.md
+++ b/examples/README.md
@@ -38,7 +38,7 @@
You can simply run "make" to build the example for all languages (except for
Go). However, since different language has different installation requirement,
-it will likely fail. It's better to follow individual instrutions below to
+it will likely fail. It's better to follow individual instructions below to
build only the language you are interested in.
### C++
