Update multi-cradle instructions

Author: fendor

README.md

@@ -31,6 +31,7 @@ we talk to clients.__
       - [Download the source code](#download-the-source-code)
       - [Building](#building)
         - [Install via cabal](#install-via-cabal)
+        - [Install cabal using stack](#install-cabal-using-stack)
         - [Install specific GHC Version](#install-specific-ghc-version)
         - [Multiple versions of HIE (optional)](#multiple-versions-of-hie-optional)
   - [Configuration](#configuration)
@@ -68,6 +69,8 @@ we talk to clients.__
       - [Otherwise](#otherwise)
     - [Nix: cabal-helper, No such file or directory](#nix-cabal-helper-no-such-file-or-directory)
     - [Liquid Haskell](#liquid-haskell)
+    - [Profiling `haskell-ide-engine`.](#profiling-haskell-ide-engine)
+      - [Using `ghc-events-analyze`](#using-ghc-events-analyze)
 
 ## Features
 
@@ -313,7 +316,9 @@ describes how to setup the environment. For example, to explicitly state
 that you want to use `stack` then the configuration file would look like:
 
 ```yaml
-cradle: {stack}
+cradle:
+  stack:
+    component: "haskell-ide-engine:lib"
 ```
 
 If you use `cabal` then you probably need to specify which component you want
@@ -325,6 +330,49 @@ cradle:
     component: "lib:haskell-ide-engine"
 ```
 
+If you have a project with multiple components, you can use a cabal-multi
+cradle:
+
+```yaml
+cradle:
+  cabal:
+    - path: "./test/dispatcher/"
+      component: "test:dispatcher-test"
+    - path: "./test/functional/"
+      component: "test:func-test"
+    - path: "./test/unit/"
+      component: "test:unit-test"
+    - path: "./hie-plugin-api/"
+      component: "lib:hie-plugin-api"
+    - path: "./app/MainHie.hs"
+      component: "exe:hie"
+    - path: "./app/HieWrapper.hs"
+      component: "exe:hie-wrapper"
+    - path: "./"
+      component: "lib:haskell-ide-engine"
+```
+
+Equivalently, you can use stack:
+
+```yaml
+cradle:
+  stack:
+    - path: "./test/dispatcher/"
+      component: "haskell-ide-engine:test:dispatcher-test"
+    - path: "./test/functional/"
+      component: "haskell-ide-engine:test:func-test"
+    - path: "./test/unit/"
+      component: "haskell-ide-engine:test:unit-test"
+    - path: "./hie-plugin-api/"
+      component: "hie-plugin-api:lib"
+    - path: "./app/MainHie.hs"
+      component: "haskell-ide-engine:exe:hie"
+    - path: "./app/HieWrapper.hs"
+      component: "haskell-ide-engine:exe:hie-wrapper"
+    - path: "./"
+      component: "haskell-ide-engine:lib"
+```
+
 Or you can explicitly state the program which should be used to collect
 the options by supplying the path to the program. It is interpreted
 relative to the current working directory if it is not an absolute path.
@@ -342,8 +390,7 @@ cradle:
   cabal:
     component: "optional component name"
   stack:
-  bazel:
-  obelisk:
+    component: "optional component name"
   bios:
     program: "program to run"
     dependency-program: "optional program to run"