add 52pi nvdac and nvdigi hat (#584)

* change 52pi pcie hat image name

* add 52pi nvdac hat

* add 52pi nvdigi hat

Author: tltangliang

_hats/52pi-nvdac-hat-a01.md

@@ -0,0 +1,14 @@
+---
+layout: hat
+title: "52Pi NVDAC"
+short_description: 52Pi's 2230/2242 NVMe and PCM5122 DAC HAT.
+status: prototype
+picture: "/images/52pi-nvdac-hat-a01.jpg"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/582"
+link: "https://twitter.com/tltangliang/status/1746746102181998730"
+videos: []
+---
+This HAT supports 2230 and 2242-size M-key NVMe SSDs, and has slots cut out for easier access to the GPIO pins and CSI/DSI cables. There are also ventilation holes under the drive for better airflow when used with the Active Cooler or other fans or heatsinks.
+
+It also offers the PCM5122 DAC. Equipped with a 192kHz/24bit Burr-Brown digital-to-analog converter it offers high-end sound quality.
+

_hats/52pi-nvdigi-hat-a02.md

@@ -0,0 +1,15 @@
+---
+layout: hat
+title: "52Pi NVDigi"
+short_description: 52Pi's 2230/2242 NVMe and WM8804 Digi HAT.
+status: prototype
+picture: "/images/52pi-nvdigi-hat-a02.jpg"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/583"
+link: "https://twitter.com/tltangliang/status/1746746102181998730"
+videos: []
+---
+This HAT supports 2230 and 2242-size M-key NVMe SSDs, and has slots cut out for easier access to the GPIO pins and CSI/DSI cables. There are also ventilation holes under the drive for better airflow when used with the Active Cooler or other fans or heatsinks.
+
+It is also a high-quality S/PDIF output for the Raspberry Pi. It uses the I2S sound port that connects directly to the CPU without the need for an additional USB conversion. It supports sample rates up to 192kHz/24bit.
+
+

_hats/52pi-pcie-x1-slot-hat.md

@@ -3,7 +3,7 @@ layout: hat
 title: "52Pi PCIe x1 Slot HAT"
 short_description: PCIe x1 open-ended slot atop the Pi 5.
 status: prototype
-picture: "/images/hat-52pi-pcie-x1-slot-hat.jpeg"
+picture: "/images/52pi-pcie-x1-slot-hat.jpeg"
 github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/566"
 link: "https://twitter.com/tltangliang/status/1732244831160942708"
 videos: []