message: Fix README for Hybrid Encryption.
diff: @@ -22,24 +22,24 @@ tinkey create-public-keyset --in hybrid_test_private_keyset.json \
  ```shell
  git clone https://github.com/google/tink
  -cd tink/examples/java_src
  -bazel build ...
  +cd tink/java_src/examples
  +bazel build hybrid_example
  ```
  Encrypt a file:
  ```shell
  echo "some data" > testdata.txt
  -./bazel-bin/hybrid/hybrid_example encrypt \
  - ./hybrid/hybrid_test_public_keyset.json \
  +../bazel-bin/hybrid/hybrid_example encrypt \
  + ../hybrid/hybrid_test_public_keyset.json \
  testdata.txt testdata.txt.encrypted
  ```
  Decrypt a file:
  ```shell
  -./bazel-bin/hybrid/hybrid_example decrypt \
  - ./hybrid/hybrid_test_private_keyset.json \
  +../bazel-bin/hybrid/hybrid_example decrypt \
  + ../hybrid/hybrid_test_private_keyset.json \
  testdata.txt.encrypted testdata.txt.decrypted
  diff testdata.txt testdata.txt.decrypted
  