fix word typo

Author: tmkasun

patch_downloader/README.md

@@ -1,5 +1,5 @@
 # Download patches given the list of patch/update numbers
-##### *** THIS IS NOT A TOOL TO ILLEGALLY DOWNLOAD WSO2 PATCHES/UPDATES YOU Need to have access to WSO2 Internal SVN***
+##### *** THIS IS NOT A TOOL TO ILLEGALLY DOWNLOAD WSO2 PATCHES/UPDATES YOU Need to have access to WSO2 Public SVN***
  - To use this tool you need to have a wso2 OT account too
  - To update the product with updates please use the [wso2 WUM tool](https://wso2.com/updates/wum)
  - `patch.list` support both