chore: regenerate README

Author: yoshi-automation

.github/readme/synth.metadata/synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-spanner.git",
-        "sha": "72d93d5aa9a301c64c9d572d10211882a359e414"
+        "sha": "fd18780f044bb1472989bbec81a390e67325a84a"
       }
     },
     {

README.md

@@ -240,6 +240,7 @@ has instructions for running the samples.
 | Query With Numeric Parameter Sample | [source code](https://github.com/googleapis/java-spanner/blob/master/samples/snippets/src/main/java/com/example/spanner/QueryWithNumericParameterSample.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-spanner&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/spanner/QueryWithNumericParameterSample.java) |
 | Quickstart Sample | [source code](https://github.com/googleapis/java-spanner/blob/master/samples/snippets/src/main/java/com/example/spanner/QuickstartSample.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-spanner&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/spanner/QuickstartSample.java) |
 | Spanner Sample | [source code](https://github.com/googleapis/java-spanner/blob/master/samples/snippets/src/main/java/com/example/spanner/SpannerSample.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-spanner&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/spanner/SpannerSample.java) |
+| Statement Timeout Example | [source code](https://github.com/googleapis/java-spanner/blob/master/samples/snippets/src/main/java/com/example/spanner/StatementTimeoutExample.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-spanner&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/spanner/StatementTimeoutExample.java) |
 | Tracing Sample | [source code](https://github.com/googleapis/java-spanner/blob/master/samples/snippets/src/main/java/com/example/spanner/TracingSample.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-spanner&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/spanner/TracingSample.java) |
 | Update Numeric Data Sample | [source code](https://github.com/googleapis/java-spanner/blob/master/samples/snippets/src/main/java/com/example/spanner/UpdateNumericDataSample.java) | [![Open in Cloud Shell][shell_img]](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/googleapis/java-spanner&page=editor&open_in_editor=samples/snippets/src/main/java/com/example/spanner/UpdateNumericDataSample.java) |