diff --git a/Commands.md b/Commands.md
index 2361b69..68a604d 100644
--- a/Commands.md
+++ b/Commands.md
@@ -3,15 +3,6 @@ This page contains the valid commands that can be sent and how they are formatte
 
 Given we use I2C for comms using hex as the commands are reasonable.
 
-## Categories
-The commands are divided into the following categories, with their own upper byte.
-The "#" denotes that this is dependent upon the command.
-
-| hex | category |
-| :- | :- |
-| 0x1# | Read data  |
-| 0x2# | Write data |
-
 ## Parameters
 ### Configuration
 | hex | config option | description | accepted values |
@@ -31,13 +22,17 @@ The "#" denotes that this is dependent upon the command.
 | 0x01 | Fan 1 |
 | 0x02 | Fan 2 |
 
-## Complete command table
+## Read commands
+| command | description | parameter |
+| :-- | :-- | :-- |
+| 0x11 | Read config | |
+| 0x12 | Read voltage | Volage source |
+| 0x13 | Read temperature | | 
+| 0x14 | Read current fan speed | Fan number |
+| 0x15 | Read bulk fan speed | Fan number |
+
+## Write commands
 | command | description | parameter |
 | :-- | :-- | :-- |
-| 0x11 | Read config | Config option |
-| 0x12 | Read  voltage | Voltage source |
-| 0x13 | Read temperature | |
-| 0x14 | Read current fan speed | fan number |
-| 0x15 | Read bulk fan speed | fan number |
 | 0x21 | Write config | Config option |
-| 0x22 | Clear stored fan speed data | fan number |
\ No newline at end of file
+| 0x22 | Clear stored fan speed data | Fan number |
\ No newline at end of file