correcting mdfind instructions on https://developer.sketch.com/cli/
`SKETCH=$(mdfind kMDItemCFBundleIdentifier == 'com.bohemiancoding.sketch3' | head -n 1)`
is not working for me @v65 as the kMDItemCFBundleIdentifier is not there:

```
$ mdls /Applications/Sketch.app
_kMDItemDisplayNameWithExtensions  = "Sketch.app"
_kMDItemEngagementData             = <09000000 007230c2 410001>
_kMDItemRenderData                 = <09000000 40c92fc2 41000201 03>
kMDItemAlternateNames              = (
    "Sketch.app"
)
kMDItemAppStoreCategory            = "Graphics & Design"
kMDItemAppStoreCategoryType        = "public.app-category.graphics-design"
kMDItemContentCreationDate         = 2020-04-27 12:56:22 +0000
kMDItemContentCreationDate_Ranking = 2020-04-27 00:00:00 +0000
kMDItemContentModificationDate     = 2020-04-27 12:56:22 +0000
kMDItemContentType                 = "com.apple.application-file"
kMDItemContentTypeTree             = (
    "com.apple.application-file",
    "public.executable",
    "com.apple.application-file",
    "public.data",
    "public.item",
    "com.apple.application"
)
kMDItemCopyright                   = "© 2009-2020 Sketch B.V."
kMDItemDateAdded                   = 2020-05-04 14:06:24 +0000
kMDItemDateAdded_Ranking           = 2020-05-04 00:00:00 +0000
kMDItemDisplayName                 = "Sketch"
kMDItemExecutableArchitectures     = (
    "x86_64"
)
kMDItemFSContentChangeDate         = 2020-04-27 12:56:22 +0000
kMDItemFSCreationDate              = 2020-04-27 12:56:22 +0000
kMDItemFSCreatorCode               = ""
kMDItemFSFinderFlags               = 0
kMDItemFSHasCustomIcon             = (null)
kMDItemFSInvisible                 = 0
kMDItemFSIsExtensionHidden         = 1
kMDItemFSIsStationery              = (null)
kMDItemFSLabel                     = 0
kMDItemFSName                      = "Sketch.app"
kMDItemFSNodeCount                 = 1
kMDItemFSOwnerGroupID              = 20
kMDItemFSOwnerUserID               = 501
kMDItemFSSize                      = 81850035
kMDItemFSTypeCode                  = ""
kMDItemInterestingDate_Ranking     = 2020-05-05 00:00:00 +0000
kMDItemKind                        = "Application"
kMDItemLanguages                   = (
    "zh-Hans",
    en,
    Base
)
kMDItemLastUsedDate                = 2020-05-05 09:42:05 +0000
kMDItemLastUsedDate_Ranking        = 2020-05-05 00:00:00 +0000
kMDItemLogicalSize                 = 81850035
kMDItemPhysicalSize                = 84692992
kMDItemUseCount                    = 7
kMDItemUsedDates                   = (
    "2020-05-03 22:00:00 +0000",
    "2020-05-04 22:00:00 +0000"
)
kMDItemVersion                     = "65"
```