Following suggestion by @sebromero change "gr" to "g" for better readability.

aentinger · web-flow · commit 6433af5d745f · 2023-09-14T11:21:36.000+02:00
diff --git a/content/hardware/03.nano/boards/nano/tech-specs.yml b/content/hardware/03.nano/boards/nano/tech-specs.yml
@@ -21,6 +21,6 @@ Clock speed:
 Memory:
   ATmega328P: 2KB SRAM, 32KB flash 1KB EEPROM
 Dimensions:
-  Weight: 7 gr
+  Weight: 7 g
   Width: 18 mm
   Length: 45 mm
