Fix typos and remove redundant info in README.rst

README.rst

@@ -1,27 +1,27 @@
 A Python Mode-S Decoder
 =======================
 
-Python library for Mode-S message decoding. Two seprate methods are
-develop to decode the following messages:
+Python library for Mode-S message decoding. Two separate methods are
+implemented to decode the following messages:
 
 - Automatic Dependent Surveillance - Broadcast (ADS-B) (DF17)
 
- - aircraft infomation that cotains: icao address, position,
- altitude, velocity (ground speed), and callsign, etc.
+ - aircraft information that contains: ICAO address, position,
+ altitude, velocity (ground speed), callsign, etc.
 
 - Mode-S Enhanced Surveillance (EHS) (DF20 and DF21)
 
- - additional information in response to SSR interogation, such as:
+ - additional information in response to SSR interrogation, such as:
  true airspeed, indicated airspeed, mach number, track angle,
- heading, and roll angle, etc.
+ heading, roll angle, etc.
 
-A detailed manuel on Mode-S decoding is published by the author, at:
+A detailed manual on Mode-S decoding is published by the author, at:
 http:https://adsb-decode-guide.readthedocs.io
 
 
 Source code
 -----------
-Checkourt and contribute to this open source project at:
+Checkout and contribute to this open source project at:
 https://github.com/junzis/pyModeS
 
 API documentation at:
@@ -85,7 +85,7 @@ Core functions for EHS decoding:
 
 .. code:: python
 
- pms.ehs.icao(msg) # icao address
+ pms.ehs.icao(msg) # ICAO address
  pms.ehs.BDS(msg) # Comm-B Data Selector Version
 
  # for BDS version 2,0
@@ -110,15 +110,6 @@ Core functions for EHS decoding:
  pms.ehs.baro_vr(msg) # barometric altitude rate (ft/min)
  pms.ehs.ins_vr(msg) # inertial vertical speed (ft/min)
 
-Some helper functions:
-
-.. code:: python
-
- pms.df(msg) # downlink format of a Mode-S message
- pms.hex2bin(msg) # convert hexadecimal string to binary string
- pms.hex2int(msg) # convert hexadecimal string to integer
- pms.bin2int(msg) # convert binary string to integer
-
 Developement
 ------------
 To run tests, run the following commands: