diff --git a/src/de/overlay/ground.md b/src/de/overlay/ground.md
index 602c5c8..ae8925c 100644
--- a/src/de/overlay/ground.md
+++ b/src/de/overlay/ground.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: Masse (Ground)
+class: interface
+type: pinout
 description: Raspberry Pi Masse Pins
 pin:
   '6':
diff --git a/src/de/overlay/i2c.md b/src/de/overlay/i2c.md
index d5f5ff6..bde3e55 100644
--- a/src/de/overlay/i2c.md
+++ b/src/de/overlay/i2c.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: I2C
+class: interface
+type: pinout
 description: Raspberry Pi I2C Anschlüsse
 pin:
   '3':
diff --git a/src/de/overlay/spi.md b/src/de/overlay/spi.md
index 33d1de3..be8a075 100644
--- a/src/de/overlay/spi.md
+++ b/src/de/overlay/spi.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: SPI
+class: interface
+type: pinout
 description: Raspberry Pi SPI Anschlüsse
 pincount: 5
 pin:
diff --git a/src/de/overlay/uart.md b/src/de/overlay/uart.md
index b841f03..8aed295 100644
--- a/src/de/overlay/uart.md
+++ b/src/de/overlay/uart.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: UART
+class: interface
+type: pinout
 description: Raspberry Pi UART Anschlüsse
 pin:
   '8':
diff --git a/src/de/overlay/wiringpi.md b/src/de/overlay/wiringpi.md
index 044ed37..51b5938 100644
--- a/src/de/overlay/wiringpi.md
+++ b/src/de/overlay/wiringpi.md
@@ -1,6 +1,8 @@
 <!--
 ---
-name: WiringPi Anschlussbelegung
+name: WiringPi
+class: interface
+type: pinout
 url: http://wiringpi.com/
 page_url: wiringpi
 pin:
diff --git a/src/es/overlay/ground.md b/src/es/overlay/ground.md
index d4a5bed..caa0c1e 100644
--- a/src/es/overlay/ground.md
+++ b/src/es/overlay/ground.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: Tierra
+class: interface
+type: pinout
 description: Pines de tierra de Raspberry Pi
 pin:
   '6':
diff --git a/src/es/overlay/i2c.md b/src/es/overlay/i2c.md
index 7579850..7d4120a 100644
--- a/src/es/overlay/i2c.md
+++ b/src/es/overlay/i2c.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: I2C
+class: interface
+type: pinout
 description: Pines de i2c de Rasberry Pi
 pin:
   '3':
diff --git a/src/es/overlay/spi.md b/src/es/overlay/spi.md
index 2419911..79a1111 100644
--- a/src/es/overlay/spi.md
+++ b/src/es/overlay/spi.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: SPI
+class: interface
+type: pinout
 description: Pines SPI Raspberry Pi
 pincount: 5
 pin:
diff --git a/src/es/overlay/uart.md b/src/es/overlay/uart.md
index 94b63fe..48be7b5 100644
--- a/src/es/overlay/uart.md
+++ b/src/es/overlay/uart.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: UART
+class: interface
+type: pinout
 description: Pines de UART de la Raspberry Pi
 pin:
   '8':
diff --git a/src/es/overlay/wiringpi.md b/src/es/overlay/wiringpi.md
index 5c3f5bb..78da700 100644
--- a/src/es/overlay/wiringpi.md
+++ b/src/es/overlay/wiringpi.md
@@ -1,6 +1,8 @@
 <!--
 ---
-name: Pinout del GPIO WiringPi
+name: WiringPi
+class: interface
+type: pinout
 page_url: wiringpi
 github: https://github.com/WiringPi/WiringPi2-Python
 url: http://wiringpi.com
diff --git a/src/fr/overlay/ground.md b/src/fr/overlay/ground.md
index c5fbfbe..c72f7ff 100644
--- a/src/fr/overlay/ground.md
+++ b/src/fr/overlay/ground.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: Masse
+class: interface
+type: pinout
 description: broches raccordées à la masse
 pin:
   '6':
diff --git a/src/fr/overlay/i2c.md b/src/fr/overlay/i2c.md
index d7ee805..b7adbb5 100644
--- a/src/fr/overlay/i2c.md
+++ b/src/fr/overlay/i2c.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: I2C
+class: interface
+type: pinout
 description: broches i2c de la Raspberry Pi
 pin:
   '3':
diff --git a/src/fr/overlay/spi.md b/src/fr/overlay/spi.md
index 5d1eaac..f2fbc4d 100644
--- a/src/fr/overlay/spi.md
+++ b/src/fr/overlay/spi.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: SPI
+class: interface
+type: pinout
 description: Raspberry Pi SPI pins
 pincount: 5
 pin:
diff --git a/src/fr/overlay/uart.md b/src/fr/overlay/uart.md
index c7fe5e5..2a2448c 100644
--- a/src/fr/overlay/uart.md
+++ b/src/fr/overlay/uart.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: UART
+class: interface
+type: pinout
 description: Raspberry Pi UART pins
 pin:
   '8':
diff --git a/src/fr/overlay/wiringpi.md b/src/fr/overlay/wiringpi.md
index 4e5beba..84b51f0 100644
--- a/src/fr/overlay/wiringpi.md
+++ b/src/fr/overlay/wiringpi.md
@@ -1,6 +1,8 @@
 <!--
 ---
-name: WiringPi GPIO Pinout
+name: WiringPi
+class: interface
+type: pinout
 page_url: wiringpi
 github: https://github.com/WiringPi/WiringPi2-Python
 url: http://wiringpi.com
diff --git a/src/it/overlay/ground.md b/src/it/overlay/ground.md
index 21900e3..7c59604 100644
--- a/src/it/overlay/ground.md
+++ b/src/it/overlay/ground.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: Massa
+class: interface
+type: pinout
 description: Pin a massa del Raspberry Pi
 pin:
   '6':
diff --git a/src/it/overlay/i2c.md b/src/it/overlay/i2c.md
index 3d90f19..9cf1d7c 100644
--- a/src/it/overlay/i2c.md
+++ b/src/it/overlay/i2c.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: I2C
+class: interface
+type: pinout
 description: Raspberry Pi pin i2c
 type: info
 pin:
diff --git a/src/it/overlay/spi.md b/src/it/overlay/spi.md
index ac7a155..846b538 100644
--- a/src/it/overlay/spi.md
+++ b/src/it/overlay/spi.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: SPI
+class: interface
+type: pinout
 description: Pin SPI del Raspberry
 pincount: 5
 pin:
diff --git a/src/it/overlay/uart.md b/src/it/overlay/uart.md
index ea6ee54..a822d23 100644
--- a/src/it/overlay/uart.md
+++ b/src/it/overlay/uart.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: UART
+class: interface
+type: pinout
 description: Pin UART del Raspberry
 pin:
   '8':
diff --git a/src/it/overlay/wiringpi.md b/src/it/overlay/wiringpi.md
index 9e24889..c135016 100644
--- a/src/it/overlay/wiringpi.md
+++ b/src/it/overlay/wiringpi.md
@@ -1,6 +1,8 @@
 <!--
 ---
-name: Mappa pin GPIO WiringPi
+name: WiringPi
+class: interface
+type: pinout
 page_url: wiringpi
 github: https://github.com/WiringPi/WiringPi2-Python
 url: http://wiringpi.com
diff --git a/src/tr/overlay/ground.md b/src/tr/overlay/ground.md
index a3ca013..b165dd7 100644
--- a/src/tr/overlay/ground.md
+++ b/src/tr/overlay/ground.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: Ground (Toprak)
+class: interface
+type: pinout
 description: Raspberry Pi Toprak Pinleri
 pin:
   '6': {}
diff --git a/src/tr/overlay/i2c.md b/src/tr/overlay/i2c.md
index caf422e..9ebb86b 100644
--- a/src/tr/overlay/i2c.md
+++ b/src/tr/overlay/i2c.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: I2C
+class: interface
+type: pinout
 description: Raspberry Pi i2c pinleri
 pin:
   '3':
diff --git a/src/tr/overlay/spi.md b/src/tr/overlay/spi.md
index e10df57..c9979f6 100644
--- a/src/tr/overlay/spi.md
+++ b/src/tr/overlay/spi.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: SPI
+class: interface
+type: pinout
 description: Raspberry Pi SPI pinleri
 pincount: 5
 pin:
diff --git a/src/tr/overlay/uart.md b/src/tr/overlay/uart.md
index 0395d21..739029a 100644
--- a/src/tr/overlay/uart.md
+++ b/src/tr/overlay/uart.md
@@ -1,6 +1,8 @@
 <!--
 ---
 name: UART
+class: interface
+type: pinout
 description: Raspberry Pi UART pinleri
 pin:
   '8':
diff --git a/src/tr/overlay/wiringpi.md b/src/tr/overlay/wiringpi.md
index 4a17cc1..ead14ab 100644
--- a/src/tr/overlay/wiringpi.md
+++ b/src/tr/overlay/wiringpi.md
@@ -1,6 +1,8 @@
 <!--
 ---
-name: WiringPi GPIO Pinleri
+name: WiringPi
+class: interface
+type: pinout
 page_url: wiringpi
 github: https://github.com/WiringPi/WiringPi2-Python
 url: http://wiringpi.com