Avoid overuse of "several"

Signed-off-by: adam-wolfe <[email protected]>

packages/zowe-explorer-api/README.md

@@ -5,7 +5,7 @@
 
 Extensibility API for Zowe Explorer is a collection of APIs that can be used to extend the [Zowe Explorer](https://github.com/zowe/zowe-explorer-vscode) VS Code extension with alternative z/OS interaction protocols and new capabilities.
 
-Extensibility API for Zowe Explorer is used by several open source Zowe Explorer extensions, including the [IBM z/OS FTP for Zowe Explorer](../zowe-explorer-ftp-extension) and [IBM CICS for Zowe Explorer](https://github.com/zowe/cics-for-zowe-client/tree/main/packages/vsce) VS Code extensions, as well as a several commercial extensions.
+Extensibility API for Zowe Explorer is used by open source Zowe Explorer extensions, including the [IBM z/OS FTP for Zowe Explorer](../zowe-explorer-ftp-extension) and [IBM CICS for Zowe Explorer](https://github.com/zowe/cics-for-zowe-client/tree/main/packages/vsce) VS Code extensions, as well as a several commercial extensions.
 
 The API is organized into modules that are exposed through the top-level `index.ts` file for convenient access.