list supported u8glib display types

README.md

@@ -360,8 +360,27 @@ cu:send("hello")
 ```
 
 ####Operate a display with u8glib
-u8glib is a graphics library with support for many different displays.
-The integration in nodemcu is developed for SSD1306 based display attached via the I2C port. Further display types and SPI connectivity will be added in the future.
+u8glib is a graphics library with support for many different displays. The nodemcu firmware supports a subset of these.
+Both I2C and SPI:
+* sh1106_128x64
+* ssd1306 - 128x64 and 64x48 variants
+* ssd1309_128x64
+* ssd1327_96x96_gr
+* uc1611 - dogm240 and dogxl240 variants
+
+SPI only:
+* ld7032_60x32
+* pcd8544_84x48
+* pcf8812_96x65
+* ssd1322_nhd31oled - bw and gr variants
+* ssd1325_nhd27oled - bw and gr variants
+* ssd1351_128x128 - gh and hicolor variants
+* st7565_64128n - variants 64128n, dogm128/132, lm6059/lm6063, c12832/c12864
+* uc1601_c128032
+* uc1608 - 240x128 and 240x64 variants
+* uc1610_dogxl160 - bw and gr variants
+* uc1611 - dogm240 and dogxl240 variants
+* uc1701 - dogs102 and mini12864 variants
 
 U8glib v1.18.1