chore: regenerate README (#139)

This PR was generated using Autosynth. 🌈


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

```
2020-10-19 22:40:09,238 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-os-config/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working directory clean
2020-10-19 22:40:10,146 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/ac5b2e14-d66f-4fd1-9760-ea28e4ca2e0a/targets

- [ ] To automatically regenerate this PR, check this box.

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

@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-os-config.git",
-        "sha": "fe06ffb0071a9ebe70fc78d1ecbde15b201823a4"
+        "sha": "cd8df9d21876b1ba1e5fe9fd5d2124f88db69a85"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "b6164c26a111f7f587099d31253abb96b5737bb2"
+        "sha": "6dc98b26a9c823e92fa21455fb6e5862613c49c2"
       }
     }
   ]

README.md

@@ -17,12 +17,10 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-os-config</artifactId>
-  <version>1.0.2</version>
+  <version>1.0.3</version>
 </dependency>
 ```
 
-[//]: # ({x-version-update-start:google-cloud-os-config:released})
-
 If you are using Gradle, add this to your dependencies
 ```Groovy
 compile 'com.google.cloud:google-cloud-os-config:1.0.3'
@@ -31,7 +29,6 @@ If you are using SBT, add this to your dependencies
 ```Scala
 libraryDependencies += "com.google.cloud" % "google-cloud-os-config" % "1.0.3"
 ```
-[//]: # ({x-version-update-end})
 
 ## Authentication