docs(update): Replace comma with period in run on sentence (#7142)

docs/lib/content/commands/npm-update.md

@@ -24,7 +24,7 @@ If no package name is specified, all packages in the specified location (global
 or local) will be updated.
 
 Note that by default `npm update` will not update the semver values of direct
-dependencies in your project `package.json`, if you want to also update
+dependencies in your project `package.json`. If you want to also update
 values in `package.json` you can run: `npm update --save` (or add the
 `save=true` option to a [configuration file](/configuring-npm/npmrc)
 to make that the default behavior).