chore: regenerate README (#325)

This PR was generated using Autosynth. 🌈


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

```
2020-12-03 09:29:25,485 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-resourcemanager/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2020-12-03 09:29:26,347 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/915ca56b-2e67-4cdc-96e9-664dad74be61/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-resourcemanager.git",
-        "sha": "ad94b6c29a63ce41eb42cb4a50a9dc651afe5741"
+        "sha": "60e2b7debedf61c31d75e0522aec69413ac785bb"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "39b7149da4026765385403632db3c6f63db96b2c"
+        "sha": "f94318521f63085b9ccb43d42af89f153fb39f15"
       }
     }
   ]

README.md

@@ -48,11 +48,11 @@ 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-resourcemanager:0.118.4-alpha'
+compile 'com.google.cloud:google-cloud-resourcemanager:0.118.5-alpha'
 ```
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-resourcemanager" % "0.118.4-alpha"
+libraryDependencies += "com.google.cloud" % "google-cloud-resourcemanager" % "0.118.5-alpha"
 ```
 
 ## Authentication