syncing EN md to FR placeholders

src/fr-FR/overlay/display-o-tron-hat.md

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+<!--
+---
+name: Display-o-Tron HAT
+manufacturer: Pimoroni
+url: https://github.com/pimoroni/dot3k
+description: A 3-line character LCD with a 6-zone RGB backlight and 6 touch buttons
+pincount: 40
+pin:
+  3:
+    mode: i2c
+  5:
+    mode: i2c
+  22:
+    name: LCD CMD/DATA
+    mode: output
+    active: high
+  19:
+    mode: spi
+  22:
+    name: LCD Register Select
+    mode: output
+  23:
+    mode: spi
+  24:
+    name: LCD Chip Select
+    mode: chipselect
+    active: high
+  32:
+    name: LCD Reset
+    mode: output
+    active: low
+-->
+#Display-o-Tron HAT
+
+Display-o-Tron HAT uses both SPI and I2c to drive the LCD display, backlight and touch. 
+However both of these busses can be shared with other devices.
+
+You can use the one-line product installer to get Display-o-Tron HAT set up and ready to go, just:
+
+```bash
+curl get.pimoroni.com/dot3k | bash
+```
+
+And follow the instructions!

src/fr-FR/overlay/iqaudio-pi-dac.md

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+<!--
+---
+name: "Pi-DAC+"
+manufacturer: IQaudIO
+buy: http://www.iqaudio.co.uk
+description: An I2S digital to analog audio converter HAT for the Pi
+install:
+  'devices':
+    - 'i2c'
+pincount: 40
+pin:
+  3:
+    mode: i2c
+  5:
+    mode: i2c
+  12:
+    name: I2S
+  15:
+    name: (optional) Mute/Unmute Pi-AMP+
+  16:
+    name: (optional) Rotary Encoder
+  18:
+    name: (optional) Rotary Encoder
+  20:
+  22:
+    name: (optional) IR Sensor
+  35:
+    name: I2S
+  38:
+    name: I2S
+  40:
+    name: I2S
+-->
+#IQaudIO Pi-DAC+
+
+The Pi-DAC+ takes the digital audio signals (I2S) from the Raspberry Pi and through the
+onboard Texas Instruments PCM5122 DAC delivers variable output (hardware volume
+control) analog audio to the Pi-DAC+ Phono connectors. The PI-DAC+ also, via the
+Texas Instruments TPA6133A headphone amp, supports the direct use of headphones via
+the Pi-DAC+ 3.5mm audio jack.
+
+The Pi Dac uses GPIO22 to mute/unmute the Pi-AMP+.
+
+You can use GPIO25 to connect an IR sensor and GPIO23/24 for a rotary encoder. Both of
+these parts are optional, but are broken out on the Pi-DAC+ for convenient access.
+
+Note: pins marked as optional can be used for general purpose if those add-ons are not enabled by software.

src/fr-FR/overlay/piano-hat.md

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+<!--
+---
+name: Piano HAT
+manufacturer: Pimoroni
+url: https://github.com/pimoroni/piano-hat
+description: A tiny Pi piano with 16 touch-sensitive buttons
+pincount: 40
+i2c:
+  '0x28':
+    name: Cap Touch A
+    device: cap1188
+    datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/CAP1188%20.pdf
+  '0x2b':
+    name: Cap Touch B
+    device: cap1188
+    datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/CAP1188%20.pdf
+pin:
+  3:
+    mode: i2c
+  5:
+    mode: i2c
+  7:
+    name: Alert A
+    mode: input
+  11:
+    name: Reset A
+    mode: output
+  13:
+    name: Alert B
+    mode: input
+  15:
+    name: Reset B
+    mode: output
+-->
+#Piano HAT
+
+Piano HAT has 16 touch-sensitive buttons. 13 of these are a single Piano octave, the rest give you octave up/down and instrument select functionality.
+
+It uses two Microchip CAP1188 chips with the i2c addresses 0x28 and 0x2b.
+
+You can use the one-line product installer to get Piano HAT set up and ready to go, just:
+
+```bash
+curl get.pimoroni.com/pianohat | bash
+```
+
+And follow the instructions!