Update README.md

Fixes #336

Signed-off-by: Ry Jones <ry@linux.com>

Author: ryjones

README.md

@@ -23,7 +23,7 @@ For details on what Nodejs runtime and versions of Hyperledger Fabric can be use
 
 ## npm Shrinkwrap
 
-In line with the advice from [npm on shrinkwrap](https://docs.npmjs.com/files/shrinkwrap.json#description) the modules published do not contain a `npm-shrinkwrap.json` file.
+In line with the advice from [npm on shrinkwrap](https://docs.npmjs.com/cli/v8/configuring-npm/npm-shrinkwrap-json) the modules published do not contain a `npm-shrinkwrap.json` file.
 
 It is **STRONGLY** recommended therefore that after testing, and before putting your contract into production a `npm-shrinkwrap.json` file is created. When the chaincode is install it will be via a `npm install --production` command.