chore: regenerate README (#255)

This PR was generated using Autosynth. 🌈


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

```
2020-12-14 18:54:17,400 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-servicedirectory/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2020-12-14 18:54:18,323 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/a81b20ae-e9ff-48d3-8614-634cd6f7347c/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-servicedirectory.git",
-        "sha": "93363b9081dc639556020fcb98d669f946b46273"
+        "sha": "21d9b2b11130a6f19426d6036844b67233761e8f"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "c2de32114ec484aa708d32012d1fa8d75232daf5"
+        "sha": "996775eca5fd934edac3c2ae34b80ff0395b1717"
       }
     }
   ]

README.md

@@ -45,11 +45,11 @@ If you are using Maven without BOM, add this to your dependencies:
 
 If you are using Gradle, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-servicedirectory:0.3.0'
+compile 'com.google.cloud:google-cloud-servicedirectory:1.0.0'
 ```
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-servicedirectory" % "0.3.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-servicedirectory" % "1.0.0"
 ```
 
 ## Authentication
@@ -144,6 +144,8 @@ Java 8 OSX | [![Kokoro CI][kokoro-badge-image-3]][kokoro-badge-link-3]
 Java 8 Windows | [![Kokoro CI][kokoro-badge-image-4]][kokoro-badge-link-4]
 Java 11 | [![Kokoro CI][kokoro-badge-image-5]][kokoro-badge-link-5]
 
+Java is a registered trademark of Oracle and/or its affiliates.
+
 [product-docs]: https://cloud.google.com/service-directory/
 [javadocs]: https://googleapis.dev/java/google-cloud-servicedirectory/latest/index.html
 [kokoro-badge-image-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-servicedirectory/java7.svg