chore: regenerate README (googleapis#312)

This PR was generated using Autosynth. 🌈


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

```
2020-11-17 20:37:43,247 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-resourcemanager/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working directory clean
2020-11-17 20:37:44,123 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/1ddc9e55-ed66-4f22-ba1d-f175fab6153b/targets

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

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

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-resourcemanager.git",
-        "sha": "218e633c695913e4a8f22f1be2891478f09006b3"
+        "sha": "be4d2ce26e990cf94c7e9c4f38e16db761fc6f43"
       }
     },
     {

java-resourcemanager/README.md

@@ -41,18 +41,18 @@ If you are using Maven without BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-resourcemanager</artifactId>
-  <version>0.118.3-alpha</version>
+  <version>0.118.4-alpha</version>
 </dependency>
 
 ```
 
 If you are using Gradle, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-resourcemanager:0.118.3-alpha'
+compile 'com.google.cloud:google-cloud-resourcemanager:0.118.4-alpha'
 ```
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-resourcemanager" % "0.118.3-alpha"
+libraryDependencies += "com.google.cloud" % "google-cloud-resourcemanager" % "0.118.4-alpha"
 ```
 
 ## Authentication