espressif: update readme-espressif.md documentation

Update SoC x RTOS status for ESP32-C2, ESP32-C6 and ESP32-H2
Also add missing cd command to the guide

Signed-off-by: Almir Okato <[email protected]>

Author: almir-okato

docs/readme-espressif.md

@@ -14,10 +14,10 @@ Documentation about the MCUboot bootloader design, operation and features can be
 
 The current port is available for use in the following SoCs within the OSes:
 
-|        | ESP32     | ESP32-S2  | ESP32-C3  | ESP32-S3  | ESP32-C2    | ESP32-C6    | ESP32-H2    |
-| :----: | :-----:   | :-----:   | :-----:   | :-----:   | :---------: | :-----:     | :-----:     |
-| Zephyr | Supported | Supported | Supported | Supported | In progress | In progress | In progress |
-| NuttX  | Supported | Supported | Supported | Supported | In progress | In progress | In progress |
+|        | ESP32     | ESP32-S2  | ESP32-C3  | ESP32-S3  | ESP32-C2    | ESP32-C6  | ESP32-H2    |
+| :----: | :-------: | :-------: | :-------: | :-------: | :---------: | :-------: | :---------: |
+| Zephyr | Supported | Supported | Supported | Supported | Supported   | Supported | In progress |
+| NuttX  | Supported | Supported | Supported | Supported | In progress | Supported | Supported   |
 
 Notice that any customization in the memory layout from the OS application must be done aware of
 the bootloader own memory layout to avoid overlapping. More information on the section
@@ -94,6 +94,10 @@ Additional configuration related to MCUboot features and slot partitioning may b
 
 1. Compile and generate the BIN:
 
+    ```bash
+    cd <MCUBOOT_DIR>/boot/espressif
+    ```
+
     ```bash
     cmake -DCMAKE_TOOLCHAIN_FILE=tools/toolchain-<TARGET>.cmake -DMCUBOOT_TARGET=<TARGET> -DESP_HAL_PATH=<ESP_HAL_PATH> -DMCUBOOT_FLASH_PORT=<PORT> -B build -GNinja
     ```