yesod: add page (#1302)

pages/common/yesod.md

@@ -0,0 +1,24 @@
+# yesod
+
+> A framework to develop Haskell web applications.
+> All yesod commands are invoked through the `stack` project manager.
+
+- Create a new scaffolded site with sqlite as backend in `my-project` directory:
+
+`stack new {{my-project}} {{yesod-sqlite}}`
+
+- Install the Yesod CLI tool within a Yesod scaffolded site:
+
+`stack build yesod-bin cabal-install --install-ghc`
+
+- Start development server:
+
+`stack exec -- yesod devel`
+
+- Touch files with altered Template Haskell dependencies:
+
+`stack exec -- yesod touch`
+
+- Deploy application using Keter (Yesod's deployment manager):
+
+`stack exec -- yesod keter`