release notes and FSAC bump for 7.6.0 (#1885)

Author: baronfel

RELEASE_NOTES.md

@@ -1,3 +1,8 @@
+### 7.6.0 - 14.06.2023
+
+* Updates FSAC to 0.60.0, which updates the compiler services to match .NET SDK 7.0.300, and includes a helpful XMLDoc generation codefix. Check out the [release notes](https://github.com/fsharp/FsAutoComplete/releases/tag/v0.60.0) for more details.
+* Includes fixes to the syntax highlighting from @jkillingsworth for constructor parens, the `new` keyword, access modifiers, arrow coloration, `:` in abstract member definitions, `()` in unit literals, and more!
+
 ### 7.5.4 - 07.05.2023
 
 * Fix debug settings to not override coreclr from omnisharp.

paket.lock

@@ -38,7 +38,7 @@ NUGET
       FSharp.Core (>= 4.7.2)
 GIT
   remote: https://github.com/ionide/ionide-fsgrammar.git
-     (f7f89b4138b482beb81b12348e6bc170bb7693d4)
+     (71b1ead8c99715f6c994115ebab7ee4a14cf0c59)
 GITHUB
   remote: ionide/ionide-vscode-helpers
     src/Fable.Import.Showdown.fs (7da920c71e4f94240a55aabb555327ebef4b653d)
@@ -242,4 +242,4 @@ STORAGE: PACKAGES
 RESTRICTION: == netstandard2.0
 NUGET
   remote: https://api.nuget.org/v3/index.json
-    fsautocomplete (0.59.6)
+    fsautocomplete (0.60)