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@@ -229,7 +229,7 @@ A 4x4 matrix can be decoded with only 5 GPIO pins and 4 diodes.
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Because there are several keypresses that involve 2 diodes in a row,
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-I strongly recommend using Schottky key diodes, although I have built several test
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+I [strongly recommend](#two-diodes) using Schottky key diodes, although I have built several test
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rigs with regular 1N4148's and had no problem interfacing to ESP8266.
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Schottky diodes are not much more expensive than regular diodes.
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