docs: Fix typos in documentation

Author: PascalHonegger

docs/API.md

@@ -200,7 +200,7 @@ To escape characters in the format string, wrap them in square brackets (e.g. `[
 ### getUnixTime
 
 ```
-getUnixTime(time: Date|Time, timeZone?: object) : number
+getUnixTime(time: Time, timeZone?: object) : number
 ```
 
 Returns a Unix timestamp (UTC) for the given incomplete [time object] converted from the given time zone.
@@ -216,7 +216,7 @@ const date = getZonedTime(date, berlin)
 // Returns the UNIX timestamp (UTC) in milliseconds
 ```
 
-This method is usually used with incomplete time objects, which are entered by the user, or parsed from date strings without time zone information. (A complete [time object] contains properties `echo` with the UTC time and `zone` with the time zone information.)
+This method is usually used with incomplete time objects, which are entered by the user, or parsed from date strings without time zone information. (A complete [time object] contains properties `epoch` with the UTC time and `zone` with the time zone information.)
 
 The returned object is supposed to be passed to other functions, which use it to convert dates. It is not supposed to be inspected outside of this library.
 
@@ -460,7 +460,7 @@ Options:
     $ create-timezone-data -m -o custom-data.js 1970 2038
 ```
 
-The module generated by this tool exposes a data object as a default export, which is expected bu the function[populatePluralData](#populatepluraldata).
+The module generated by this tool exposes a data object as a default export, which is expected by the function [populatePluralData](#populatepluraldata).
 
 [time object]: ./design.md#time-object
 [IANA time zones]: https://en.wikipedia.org/wiki/List_of_tz_database_time_zones