[Blog] Add deprecating of global use of CLI

docs/blog/version-4.5-release-notes.md

@@ -14,3 +14,24 @@ Version 4.5 of [Foal](https://foalts.org/) is out!
 
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+## Global use of CLI deprecated
+
+In previous versions, the tutorial suggested installing the CLI globally to create a new application or generate files. However, it is considered bad practice to install a dependency globally for local use.
+
+In addition, the CLI was also installed locally so that the build command would work when deploying the application to a CI or to production. This maintained two versions of the same CLI
+
+To correct this, in the documentation and examples, the CLI is now always installed and used locally. To use it, simply add `npx` before each command (except for `createapp`).
+
+```bash
+# Before
+foal createapp my-app
+
+foal generate script foobar
+foal createsecret
+
+# After
+npx @foal/cli createapp my-app
+
+npx foal generate script foobar
+npx foal createsecret
+```