ghcid: add page (#14611)

Co-authored-by: Wiktor Perskawiec <git@spageektti.cc>

pages/common/ghcid.md

@@ -0,0 +1,29 @@
+# ghcid
+
+> Simple and efficient CLI IDE for Haskell that reloads code on file changes.
+> Continuously displays compile errors, warnings, and test results.
+> More information: <https://github.com/ndmitchell/ghcid>.
+
+- Start `ghcid` and monitor a Haskell file for changes:
+
+`ghcid {{path/to/Main.hs}}`
+
+- Start `ghcid` with a specific command, such as loading a Stack or Cabal project:
+
+`ghcid --command "{{stack ghci Main.hs}}"`
+
+- Run an action (default `main`) on each file save:
+
+`ghcid --run={{action}} {{path/to/Main.hs}}`
+
+- Set maximum height and width (default to console height and width):
+
+`ghcid --height={{height}} --width={{width}} {{path/to/Main.hs}}`
+
+- Write full GHC compiler output to a file:
+
+`ghcid --outputfile={{path/to/output_file.txt}} {{path/to/Main.hs}}`
+
+- Execute REPL commands (eg. `-- $> 1+1`) on each file save:
+
+`ghcid --allow-eval {{path/to/Main.hs}}`