Update README.md to describe JSON/YAML/XML capabilities.

Signed-off-by: Xavier Figueroa <[email protected]>

Author: xavierfigueroav

README.md

@@ -1,5 +1,4 @@
-
-# Python SPDX Library to parse, validate and create SPDX documents [GSoC2019 adding support task]
+# Python SPDX Library to parse, validate and create SPDX documents
 
 | Linux | macOS | Windows |
 | :---- | :------ | :---- |
@@ -16,51 +15,77 @@ This library implements an SPDX tag/value and RDF parser, validator and handler
 This is the result of an initial GSoC contribution by @[ah450](https://github.com/ah450) (or https://github.com/a-h-i) and 
 is maintained by a community of SPDX adopters and enthusiasts.
 
-# What's new? [GSoC 2019]
+Home: https://github.com/spdx/tools-python
+
+Issues: https://github.com/spdx/tools-python/issues
+
+Pypi: https://pypi.python.org/pypi/spdx-tools
 
-As a requirement for being eligible as a GSoC student, JSON format support was added to this project.
-Currently, this support include writing and parsing **^[new]^** capabilities.
-Additionally, not only JSON writing capabilities were added, but also YAML.
 
 # License
 
 [Apache-2.0](LICENSE)
 
 
-# How to use [GSoC 2019]
+# Features
+
+* API to create and manipulate SPDX documents.
+* Parse and create Tag/Value, RDF, JSON, YAML, XML format SPDX files
+
+
+# TODOs
+
+* Update to full SPDX v2.1
+* Add to full license expression support
+
+
+# How to use
 
-The `examples` directory contains several **new** code samples:
-To test writing capabilities:
-* `rdf_to_json.py` demonstrates how to convert an RDF file to a JSON one.
-   To test it, run `python rdf_to_json.py ../data/SPDXRdfExample.rdf`
+Example tag/value parsing usage:
+```Python
+    from spdx.parsers.tagvalue import Parser
+    from spdx.parsers.tagvaluebuilders import Builder
+    from spdx.parsers.loggers import StandardLogger
+    p = Parser(Builder(), StandardLogger())
+    p.build()
+    # data is a string containing the SPDX file.
+    document, error = p.parse(data)
 
-* `rdf_to_yaml.py` demonstrates how to convert an RDF file to a YAML one.
-   To test it, run `python rdf_to_yaml.py ../data/SPDXRdfExample.rdf`
-   
-* `tv_to_json.py` demonstrates how to convert a tag/value file to a JSON one.
-   To test it, run `python tv_to_json.py ../data/SPDXSimpleTag.tag`
-   
-* `tv_to_yaml.py` demonstrates how to convert a tag/value file to a YAML one.
-   To test it, run `python tv_to_yaml.py ../data/SPDXSimpleTag.tag`
+```
+
+The `examples` directory contains several code samples. Here some of them:
 
 * `parse_tv.py` is an example tag/value parsing usage.
   Try running `python parse_tv.py ../data/SPDXSimpleTag.tag `
 
-To test parsing capabilities **^[new]^**:
-* `parse_json.py` is an example of JSON parsing usage.
-   To test it, run `python parse_json.py ../data/SPDXJsonExample.json`
+* `write_tv.py` provides an example of writing tag/value files.
+  Run `python write_tv.py sample.tag` to test it.
+
+* `pp_tv.py` demonstrates how to pretty-print a tag/value file.
+   To test it run `python pp_tv.py ../data/SPDXTagExample.tag pretty.tag`.
 
-* `parse_yaml.py` is an example of YAML parsing usage.
-   To test it, run `python parse_yaml.py ../data/SPDXYamlExample.yaml`
+* `parse_rdf.py` demonstrates how to parse an RDF file and print out document 
+   information. To test it run `python parse_rdf.py ../data/SPDXRdfExample.rdf`
 
-# Known issues [GSoC 2019]
+* `rdf_to_tv.py` demonstrates how to convert an RDF file to a tag/value one.
+   To test it run `python rdf_to_tv.py ../data/SPDXRdfExample.rdf converted.tag`
+
+* `pp_rdf.py` demonstrates how to pretty-print an RDF file, to test it run 
+  `python pp_rdf.py ../data/SPDXRdfExample.rdf pretty.rdf`
 
-* Some string values in YAML files are not quoted and some others are. This issue may be solved by changing the way python strings are stored in python dictionaries (which are then dumped by `ruamel.yaml`). Current `tools-python` issues complicate a little bit this change. See [#91](https://github.com/spdx/tools-python/issues/91).
 
 # Installation
 
 Clone or download the repository and run `python setup.py install`. (In a virtualenv, of course)
 
+or install from Pypi with `pip install spdx-tools`
+
+
+# How to run tests
+
+From the project root directory run: `python setup.py test`.
+You can use another test runner such as pytest or nose at your preference.
+
 
 # Development process
 
@@ -93,8 +118,10 @@ If there is no issue for the changes that you want to make, create first an issu
 # Dependencies
 
 * PLY : https://pypi.python.org/pypi/ply/ used for parsing.
-* rdflib : https://pypi.python.org/pypi/rdflib/ for for handling RDF. 
-* ruamel.yaml : https://pypi.org/project/ruamel.yaml/ for handling YAML. **^[new]^**
+* rdflib : https://pypi.python.org/pypi/rdflib/ for handling RDF. 
+* PyYAML: https://pypi.org/project/PyYAML/ for handling YAML.
+* xmltodict: https://pypi.org/project/xmltodict/ for handling XML.
+
 
 # Support