chore: regenerate README (#309)

This PR was generated using Autosynth. 🌈 <details><summary>Log from Synthtool</summary> ``` 2020-10-30 23:43:28,948 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-logging/.github/readme/synth.py. On branch autosynth-readme nothing to commit, working directory clean 2020-10-30 23:43:29,819 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/94e405e0-9258-4708-8e06-769139a0f242/targets - [ ] To automatically regenerate this PR, check this box.

Author: yoshi-automation

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

@@ -4,14 +4,14 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-logging.git",
- "sha": "2f430f3ec11a45cebe405a1a59ca2f93977d8b01"
+ "sha": "de4632d78e3ca120c6b09d97324777052e61971b"
  }
  },
  {
  "git": {
  "name": "synthtool",
  "remote": "https://github.com/googleapis/synthtool.git",
- "sha": "6542bd723403513626f61642fc02ddca528409aa"
+ "sha": "b19b401571e77192f8dd38eab5fb2300a0de9324"
  }
  }
  ]

README.md

@@ -17,7 +17,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>libraries-bom</artifactId>
- <version>13.3.0</version>
+ <version>13.4.0</version>
  <type>pom</type>
  <scope>import</scope>
  </dependency>