docs: node 9 is working well these days

README.md

@@ -85,25 +85,23 @@ In addition to reading the [article mentioned above](http://www.voodootikigod.co
 
 | Platform / Arch | Node v4.x | Node v6.x | Node v8.x | Node v9.x |
 |       ---       | --- | --- | --- | --- |
-| Linux / ia32    |  ☑  |  ☑  |  ☑  |  ☐  |
-| Linux / x64     |  ☑  |  ☑  |  ☑  |  ☐  |
+| Linux / ia32    |  ☑  |  ☑  |  ☑  |  ☑  |
+| Linux / x64     |  ☑  |  ☑  |  ☑  |  ☑  |
 | Linux / ARM v6¹ |  ☐  |  ☐  |  ☐  |  ☐  |
 | Linux / ARM v7¹ |  ☐  |  ☐  |  ☐  |  ☐  |
 | Linux / ARM v8¹ |  ☐  |  ☐  |  ☐  |  ☐  |
 | Linux / MIPSel¹ |  ☐  |  ☐  |  ☐  |  ☐  |
 | Linux / PPC64¹  |  ☐  |  ☐  |  ☐  |  ☐  |
-| Windows² / x86  |  ☐  |  ☑  |  ☑  |  ☐  |
-| Windows² / x64  |  ☑  |  ☑  |  ☑  |  ☐  |
-| OSX³ / x64      |  ☑  |  ☑  |  ☑  |  ☐  |
+| Windows² / x86  |  ☐  |  ☑  |  ☑  |  ☑  |
+| Windows² / x64  |  ☑  |  ☑  |  ☑  |  ☑  |
+| OSX³ / x64      |  ☑  |  ☑  |  ☑  |  ☑  |
 
 ¹ ARM, MIPSel and PPC64¹ platforms are not currently part of our testing or build matrix, but are known to work.
 
 ² Windows 7, 8, 10, and 10 IoT are supported, but our CI tests only Windows Server 2012 R2.
 
 ³ OSX 10.4 Tiger and above are supported, but our CI tests only 10.9.5 Mavericks with Xcode 6.1.
 
-⁴ Node 9 is not supported but we're providing builds for it.
-
 ## Installation Instructions
 
 For most "standard" use cases (Node v4.x on Mac, Linux, or Windows on a x86 or x64 processor), Node-Serialport will install nice and easy with: