Add icons for each device

[agucova]

Perhaps icons (or emojis, although I don't think any is suitable) could be added to categorize those entries which support either the ESP32 or the ESP8266, as well as the upcoming model, the ESP32-S2.

I'm thinking of something like:

• ESP-Dash - Beautiful framework for creating remote dashboards. ICON HERE

Instead of:

• ESP-Dash - Beautiful framework for creating remote dashboards in the 8266.

[agucova]

Perhaps simply adding color coding based on the pictures in the README would be enough and quite intuitive.

• ESP-Dash - Beautiful framework for creating remote dashboards. 🔵 🔴
• ESP32 - An experimental firmware for 3D Printers. 🔴 🔵
• IRremoteESP8266 - Emit and receive IR signals. 🔵

[stheid]

but maybe put the colors directly after the link. otherwise it might be quite confusing with linebreaks