chore: regenerate README (#283)

This PR was generated using Autosynth. 🌈


<details><summary>Log from Synthtool</summary>

```
2021-06-16 19:59:32,283 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-workflows/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-06-16 19:59:33,527 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

```
</details>

Full log will be available here:
https://source.cloud.google.com/results/invocations/e6107ae0-4010-498e-b8e2-77f189146b7c/targets

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java-workflows/.github/readme/synth.metadata/synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-workflows.git",
-        "sha": "95c7944555c089f8e10961c5722c990f3ab5fa66"
+        "sha": "7f0ed745f1fe8d94a8ef1639880a6fb4fbed6526"
       }
     },
     {

java-workflows/README.md

@@ -17,7 +17,7 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-workflows</artifactId>
-  <version>1.0.0</version>
+  <version>1.0.1</version>
 </dependency>
 
 ```