Fix Codespell complaints

README.md

@@ -241,7 +241,7 @@ Supposing the STM32 stm32 core version is 2.3.0. These files must be copied into
 - `~/.arduino15/packages/STM32/hardware/stm32/2.3.0/system/STM32F7xx/stm32f7xx_hal_conf_default.h` for Nucleo-144 STM32F7.
 
 Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zz,
-theses files must be copied into the corresponding directory:
+these files must be copied into the corresponding directory:
 
 - `~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/system/STM32F4xx/stm32f4xx_hal_conf_default.h`
 - `~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/system/STM32F7xx/stm32f7xx_hal_conf_default.h
@@ -257,7 +257,7 @@ Supposing the STM32 stm32 core version is 2.3.0. These files must be copied into
 - `~/.arduino15/packages/STM32/hardware/stm32/2.3.0/variants/STM32L0xx/L052R(6-8)T_L053R(6-8)T_L063R8T/NUCLEO_L053R8/variant.h` for Nucleo-64 NUCLEO_L053R8.
 
 Whenever a new version is installed, remember to copy this file into the new version directory. For example, new version is x.yy.zz,
-theses files must be copied into the corresponding directory:
+these files must be copied into the corresponding directory:
 
 - `~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/variants/STM32F7xx/F765Z(G-I)T_F767Z(G-I)T_F777ZIT/NUCLEO_F767ZI/variant.h`
 - `~/.arduino15/packages/STM32/hardware/stm32/x.yy.zz/variants/STM32L0xx/L052R(6-8)T_L053R(6-8)T_L063R8T/NUCLEO_L053R8/variant.h`

docs/2.-API-reference.md

@@ -14,7 +14,7 @@ Set the keep alive. Defaults to 15 seconds.
 
 #### AsyncMqttClient& setClientId(const char\* `clientId`)
 
-Set the client ID. Defaults to `esp8266<chip ID on 6 hex caracters>`.
+Set the client ID. Defaults to `esp8266<chip ID on 6 hex characters>`.
 
 * **`clientId`**: Client ID
 
@@ -163,4 +163,4 @@ Return the packet ID (or 1 if QoS 0) or 0 if failed.
 
 When disconnected, clears all queued messages
 
-Returns true on succes, false on failure (client is no disconnected)
+Returns true on success, false on failure (client is no disconnected)

docs/3.-Memory-management.md

@@ -5,7 +5,7 @@ AsyncMqttClient buffers outgoing messages in a queue. On sending data is copied
 ## Outgoing messages
 
 You can send data as long as memory permits. A minimum amount of free memory is set at 4096 bytes. You can lower (or raise) this value by setting `MQTT_MIN_FREE_MEMORY` to your desired value.
-If the free memory was sufficient to send your packet, the `publish` method will return a packet ID indicating the packet was queued. Otherwise, a `0` will be returned, and it's your responsability to resend the packet with `publish`.
+If the free memory was sufficient to send your packet, the `publish` method will return a packet ID indicating the packet was queued. Otherwise, a `0` will be returned, and it's your responsibility to resend the packet with `publish`.
 
 ## Incoming messages
 

platformio/platformio.ini

@@ -52,7 +52,7 @@ lib_deps =
 build_flags =
 ; set your debug output (default=Serial)
 ; -D DEBUG_ESP_PORT=Serial
-; comment the folowing line to enable WiFi debugging
+; comment the following line to enable WiFi debugging
 ; -D NDEBUG
 
 ; ============================================================