chore: regenerate README (#720)

This PR was generated using Autosynth. 🌈


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

```
2020-12-10 02:40:51,982 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-bigquerystorage/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2020-12-10 02:40:52,883 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/3a7e1af2-9b5b-45be-b97c-232612e5a312/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-bigquerystorage.git",
-        "sha": "2f1c386a7744c1e134c20bc8d07cefb1eebd7e8b"
+        "sha": "ace8a95549e97a307abb73fc4204a569dce4c7ce"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "18c5dbdb4ac8cf75d4d8174e7b4558f48e76f8a1"
+        "sha": "352f25621c28d2fa0784984ea0ed5ea697aa1525"
       }
     }
   ]

README.md

@@ -38,18 +38,18 @@ If you are using Maven without BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigquerystorage</artifactId>
-  <version>1.6.7</version>
+  <version>1.7.0</version>
 </dependency>
 
 ```
 
 If you are using Gradle, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-bigquerystorage:1.6.7'
+compile 'com.google.cloud:google-cloud-bigquerystorage:1.7.0'
 ```
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigquerystorage" % "1.6.7"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigquerystorage" % "1.7.0"
 ```
 
 ## Authentication
@@ -140,6 +140,8 @@ 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/bigquery/docs/reference/storage/
 [javadocs]: https://googleapis.dev/java/google-cloud-bigquerystorage/latest
 [kokoro-badge-image-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-bigquerystorage/java7.svg