Update ChangeLog and README

Author: tilk

ChangeLog.md

@@ -6,6 +6,7 @@ All notable changes to this project will be documented in this file.
 ### Added
 
 - Support for Yosys 0.11 cells `$aldff`, `$aldffe`
+- Added a function `yosys2digitaljs` for converting a Yosys JSON output obtained elsewhere, without running Yosys locally
 
 ## [0.5.0] -- 2021-10-06
 

README.md

@@ -25,9 +25,10 @@ The generated JSON is printed on standard output.
 # API
 Yosys2digitaljs can be used as a library. The API is promise (or async/await) based. Available functions are:
 
- - `process_sv(sv_text)` - converts a single SystemVerilog source passed as a string.
- - `process_files(texts)` - converts multiple Verilog/SystemVerilog sources. The `texts` parameter is an object, with keys being file names, and corresponding values containing the file contents as strings. Example: `{ 'test.sv': 'module test; ...' }`.
- - `process(filenames, dirname)` - converts Verilog/SystemVerilog sources saved on the filesystem under names `filenames` in the directory `dirname`.
+ - `yosys2digitaljs(json, options)` - converts the Yosys JSON output `json` (passed as an JS object) to a DigitalJS representation of the same circuit.
+ - `process_sv(sv_text, options)` - converts a single SystemVerilog source passed as a string.
+ - `process_files(texts, options)` - converts multiple Verilog/SystemVerilog sources. The `texts` parameter is an object, with keys being file names, and corresponding values containing the file contents as strings. Example: `{ 'test.sv': 'module test; ...' }`.
+ - `process(filenames, dirname, options)` - converts Verilog/SystemVerilog sources saved on the filesystem under names `filenames` in the directory `dirname`.
 
 The functions return a promise, which fulfills with an object value with following keys: