Use camelCase for npm aliases

plugins/npm/npm.plugin.zsh

 eval "$(npm completion 2>/dev/null)"
 
-# Install and save to dependencies
-alias npms="npm i -S "
 
-# Install and save to dev-dependencies
-alias npmd="npm i -D "
+# npm package names are lowercase
+# - https://twitter.com/substack/status/23122603153150361
+# Thus, we've used camelCase for the following aliases:
+
+# Install and save to dependencies in your package.json
+# npms is used by https://www.npmjs.com/package/npms
+alias npmS="npm i -S "
+
+# Install and save to dev-dependencies in your package.json
+# npmd is used by https://github.com/dominictarr/npmd
+alias npmD="npm i -D "