Update cheatsheets

ionic

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ionic
+
+> A framework to build hybrid mobile apps.
+> More information: <https://ionicframework.com/docs/cli>.
+
+- Create a new project:
+
+`ionic start`
+
+- Start a local dev server for app dev/testing:
+
+`ionic serve`
+
+- Generate new app component, directive, page, pipe, provider or tabs:
+
+`ionic g {{page}}`
+
+- Run app on an Android/iOS device:
+
+`ionic cordova run {{android|ios}} --device`
+
+- Check the health of an Ionic app:
+
+`ionic doctor {{check}}`
+
+- Display versions of Ionic, Cordova, environment, etc.:
+
+`ionic info`