Fix up readme.md

.fernignore

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-# Specify files that shouldn't be modified by Fern
+README.md
+banner.png

README.md

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+# Cohere Java Library
+
+![](banner.png)
+
+[![Maven Central](https://img.shields.io/maven-central/v/com.cohere.cohere-java/cohere)](https://central.sonatype.com/artifact/com.cohere.cohere-java/cohere)
+[![fern shield](https://img.shields.io/badge/%F0%9F%8C%BF-SDK%20generated%20by%20Fern-brightgreen)](https://github.com/fern-api/fern)
+
+## Documentation
+
+API reference documentation is available [here](https://docs.cohere.com/docs).
+
+## Installation
+
+### Gradle
+
+Add the dependency in your `build.gradle`:
+
+```groovy
+dependencies {
+    implementation 'com.cohere.cohere-java:cohere:1.x.x'
+}
+```
+
+### Maven
+
+Add the dependency in your `pom.xml`:
+
+```xml
+<dependency>
+    <groupId>com.cohere.cohere-java</groupId>
+    <artifactId>cohere</artifactId>
+    <version>1.x.x</version>
+</dependency>
+```
+
+## Usage
+```java
+import com.cohere.api.Cohere;
+
+Cohere cohere = Cohere.builder()
+  .apiKey("YOUR_API_KEY")
+  .build();
+
+GenerateResponse response = cohere.generate(GenerateRequest.builder()
+      .prompt("Summarize the blog post...")
+      .build());
+
+System.out.printlin("Received response!" + response);
+```
+
+### Handling Errors
+When the API returns a non-success status code (4xx or 5xx response),
+a subclass of [ApiError](src/main/java/com/Cohere/api/core/ApiError.java)
+will be thrown:
+
+```ts
+import com.cohere.api.core.ApiError;
+
+try {
+  cohere.generate(/* ... */);
+} catch (ApiError error) {
+  System.out.println(error.getBody());
+  System.out.println(error.getStatusCode());
+}
+```
+
+## Beta status
+This SDK is in beta, and there may be breaking changes between versions 
+without a major version update. Therefore, we recommend pinning the package
+version to a specific version in your build.gradle file. This way, you can 
+install the same version each time without breaking changes unless you are
+intentionally looking for the latest version.
+
+## Contributing
+While we value open-source contributions to this SDK, this library 
+is generated programmatically. Additions made directly to this library 
+would have to be moved over to our generation code, otherwise they would 
+be overwritten upon the next generated release. Feel free to open a PR as a
+proof of concept, but know that we will not be able to merge it as-is. 
+We suggest opening an issue first to discuss with us!
+
+On the other hand, contributions to the README are always very welcome!