Update README

Author: rcosta358

README.md

@@ -18,7 +18,7 @@ The codespace will open in your browser and automatically install the LiquidJava
 
 ### Local Setup
 
-To set up the extension locally, install the [LiquidJava Extension](https://marketplace.visualstudio.com/items?itemName=AlcidesFonseca.liquid-java) from the VS Code Marketplace and add the `liquidjava-api` dependency to your Java project.
+To set up the extension locally, install the LiquidJava extension in the [VS Code Marketplace](https://marketplace.visualstudio.com/items?itemName=AlcidesFonseca.liquid-java) or the [Open VSX Marketplace](https://open-vsx.org/extension/AlcidesFonseca/liquid-java) and add the `liquidjava-api` dependency to your Java project.
 
 #### Maven
 ```xml
@@ -97,4 +97,4 @@ To build the language server, export it as a runnable JAR file named `language-s
 - `/server` - Implements the [Language Server Protocol (LSP)](https://microsoft.github.io/language-server-protocol/) in Java using the [LSP4J](https://github.com/eclipse/lsp4j) library
 - `/client` - Implements the VS Code extension in TypeScript that connects to the language server using LSP
     - It depends on [Language Support for Java™](https://github.com/redhat-developer/vscode-java) for regular Java errors
-- `/lib` - Contains the `liquidjava-api.jar` required for the extension to be activated in a Java project
+- `/lib` - Contains the `liquidjava-api.jar` required for the extension to be activated in a Java project