docs/esp8266/general: Minor grammar fixes.
@@ -6,16 +6,16 @@ ESP8266 is a popular WiFi-enabled System-on-Chip (SoC) by Espressif Systems.
Multitude of boards
-------------------
-There are a multitude of modules and boards from different sources which carry
+There is a multitude of modules and boards from different sources which carry
the ESP8266 chip. MicroPython tries to provide a generic port which would run on
as many boards/modules as possible, but there may be limitations. Adafruit
Feather HUZZAH board is taken as a reference board for the port (for example,
testing is performed on it). If you have another board, please make sure you
-have datasheet, schematics and other reference materials for your board
+have a datasheet, schematics and other reference materials for your board
handy to look up various aspects of your board functioning.
To make a generic ESP8266 port and support as many boards as possible,
-following design and implementation decision were made:
+the following design and implementation decision were made:
* GPIO pin numbering is based on ESP8266 chip numbering, not some "logical"
numbering of a particular board. Please have the manual/pin diagram of your board
