Add esp32c6. (#72)

variants/README.md

@@ -17,6 +17,13 @@ This variant supports Ethernet, but without the clock output.
 
 An ESP32 variant for boards with SPIRAM. Otherwise the same as the ESP32 variant.
 
+## esp32-no-ble
+
+A [variant](esp32-no-ble/) for ESP32 boards.  This variant
+saves some RAM and flash space by removing the Bluetooth stack.
+The saved IRAM enables us to make the Toit interpreter a little faster
+and add support for external RAM (PSRAM, aka SPIRAM).
+
 ## esp32-eth-clk-out0 and esp32-eth-clk-out17
 
 A variant for ESP32 boards with Ethernet and a clock output on pin 0/17.
@@ -26,9 +33,14 @@ Olimex boards with Ethernet should use this variant. The WROOM versions need
 
 ## esp32c3
 
-A generic [ESP32-C3 variant](esp32c). This is the default variant
+A generic [ESP32-C3 variant](esp32c3). This is the default variant
 when using Toit on ESP32-C3 boards.
 
+## esp32c6
+
+A generic [ESP32-C6 variant](esp32c6). This is the default variant
+when using Toit on ESP32-C6 boards.
+
 ## esp32s2
 
 A generic [ESP32-S2 variant](esp32s2). This is the default variant
@@ -47,10 +59,3 @@ A [variant](esp32s3-spiram-octo/) for ESP32-S3 boards with external
 octal PSRAM.
 
 These boards are faster, but often more expensive.
-
-## esp32-no-ble
-
-A [variant](esp32-no-ble/) for ESP32 boards.  This variant
-saves some RAM and flash space by removing the Bluetooth stack.
-The saved IRAM enables us to make the Toit interpreter a little faster
-and add support for external RAM (PSRAM, aka SPIRAM).