update Heltec LoRa Gateway list

Author: Aaron Lee

en/products/lora/lora_gateway/heltec_lora_gateway_list.md

@@ -15,9 +15,9 @@
 |                           Product                            |                     Application Scenario                     |          Baseband Chipset          |
 | :----------------------------------------------------------: | :----------------------------------------------------------: | :--------------------------------: |
 | [HT-M00 Dual Channel Gateway](https://heltec.org/project/ht-m00/) | Smart family or some indoor LoRa applications that work with less than 30PCS LoRa nodes. | ESP32+1276*2 with digital baseband |
-| [HT-M01 Evaluation Gateway](<https://heltec.org/project/ht-m01/>) | Verify LoRa communication solutions and secondary development; |        SX1308 + SX1255/7*2         |
-|                    HT-M01S Indoor Gateway                    | Indoor environments with power supply and internet such as smart factories and smart warehouses |        SX1308 + SX1255/7*2         |
-| [HT-M02 Edge LoRa Gateway](<https://heltec.org/project/ht-m02/>) |      Smart city, smart farms etc. **outdoor projects**       |        SX1301 + SX1255/7*2         |
+| [HT-M01 Evaluation Gateway](<https://heltec.org/project/ht-m01/>)<sup>1</sup> | Verify LoRa communication solutions and secondary development. |        SX1308 + SX1255/7*2         |
+| [HT-M01S Indoor Gateway](https://heltec.org/project/ht-m01s/) | Indoor environments with power supply and internet such as smart factories and smart warehouses. |        SX1308 + SX1255/7*2         |
+| [HT-M02 Edge LoRa Gateway](<https://heltec.org/project/ht-m02/>) |      Smart city, smart farms etc. **outdoor projects.**      |        SX1301 + SX1255/7*2         |
 |               HT-M02S Solar Edge LoRa Gateway                | suitable for deployment **in the field without power supply**, such as animal monitoring, forest fire warning, natural disaster warning etc. |         SX1302 + SX1250*2          |
 
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