chore: regenerate README (#94)

This PR was generated using Autosynth. 🌈


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

```
2021-01-12 21:02:28,735 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-video-transcoder/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-01-12 21:02:29,606 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/5384e92e-b69b-453f-8498-7679aee11385/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-video-transcoder.git",
-        "sha": "c665b2d5e05c4ed33ed205cf55dfe50d3f040a93"
+        "sha": "65d7c6fa2ce0917bc77f2e8e94fd53c2c0a432b4"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "996775eca5fd934edac3c2ae34b80ff0395b1717"
+        "sha": "16ec872dd898d7de6e1822badfac32484b5d9031"
       }
     }
   ]

README.md

@@ -24,10 +24,11 @@ If you are using Maven, add this to your pom.xml file:
 </dependency>
 ```
 
-If you are using Gradle, add this to your dependencies
+If you are using Gradle without BOM, add this to your dependencies
 ```Groovy
 compile 'com.google.cloud:google-cloud-video-transcoder:0.1.4'
 ```
+
 If you are using SBT, add this to your dependencies
 ```Scala
 libraryDependencies += "com.google.cloud" % "google-cloud-video-transcoder" % "0.1.4"