chore: regenerate README (#380)

This PR was generated using Autosynth. 🌈


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

```
2021-04-27 18:26:33,323 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-bigqueryreservation/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-04-27 18:26:34,555 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/dc6d058f-9ffa-454c-add0-2d3fc9d6dfc0/targets

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Author: yoshi-automation

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

@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-bigqueryreservation.git",
-        "sha": "c86c6f07e460544f14d09dc8e97ee2ef9c139329"
+        "sha": "e48e3aae784fcb7a7b1b8ddb5e908e3f1fa4ec9b"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "0a071b3460344886297a304253bf924aa68ddb7e"
+        "sha": "6244244abd0da5ef750e3bbb63fa22ec6803b4db"
       }
     }
   ]

README.md

@@ -17,18 +17,18 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigqueryreservation</artifactId>
-  <version>1.1.3</version>
+  <version>1.1.4</version>
 </dependency>
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 ```Groovy
-compile 'com.google.cloud:google-cloud-bigqueryreservation:1.1.3'
+compile 'com.google.cloud:google-cloud-bigqueryreservation:1.1.4'
 ```
 
 If you are using SBT, add this to your dependencies
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryreservation" % "1.1.3"
+libraryDependencies += "com.google.cloud" % "google-cloud-bigqueryreservation" % "1.1.4"
 ```
 
 ## Authentication