Update README.md (#6703)

diff --git a/aten/README.md b/aten/README.md
index 27fff09..64b3959 100644
--- a/aten/README.md
+++ b/aten/README.md
@@ -60,7 +60,7 @@
 using namespace at; // assumed in the following
 
 Tensor d = CPU(kFloat).ones({3, 4});
-Tensor r = CPU(kFloat).zeros({3,4})
+Tensor r = CPU(kFloat).zeros({3,4});
 for(auto i = 0; i < 100000; i++) {
   r = r.add(d);
   // equivalently
@@ -75,7 +75,7 @@
 using namespace at; // assumed in the following
 
 Tensor d = CUDA(kFloat).ones({3, 4});
-Tensor r = CUDA(kFloat).zeros({3,4})
+Tensor r = CUDA(kFloat).zeros({3,4});
 for(auto i = 0; i < 100000; i++) {
   r = r.add(d);
   // equivalently
@@ -208,7 +208,7 @@
 optionally backed by a zero-dim Tensor, and are only copied to the CPU when requested.
 
 ```c++
-auto a = CUDA(kFloat).rand({3,4})
+auto a = CUDA(kFloat).rand({3,4});
 Scalar on_gpu = Scalar(a[1][1]); //backed by zero-dim Tensor
 assert(on_gpu.isBackedByTensor());