readme exemplary crawlpath and crawlpath.mjs must be updated to use new call-tokenuri strategy

[TimDaub]

• we've deleted all platform specific call-tokenuri strategies in favor of using a generic strategy: https://github.com/neume-network/strategies/commit/08af9f4fecdedad92cf5e8b5c6558f0189b97c12
• we've made that change in /data too: https://github.com/neume-network/data/blob/bfce554e48aa22ab5d4ee2cb5a5306bc4234f355/steps/3.mjs
• but in the readme.md file here and in the exemplary crawl_path.mjs file, we haven't made that change yet
• As soon as we'll start to upgrade the /strategies submodule, beyond the above linked commit tip, we must update the crawl paths