add new software section to node operator journey (#174)

native/07_node-operation/10_getting-started/00_software.md

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+---
+title: Software
+---
+
+Each node on the EOS network runs the same software called `nodeos`. The software can be configured for each node to serve a different role on the EOS network. Some nodes produce blocks, others relay blocks and transactions, others respond to API requests, others provide historical chain data, etc.
+
+> i `nodeos` is part of the Leap software suite. It is the software that fuels every node of the EOS network. `nodeos` functions as a command line interface (CLI) application, allowing users to start it either manually through the command line or automatically using a script.
+
+The behavior of `nodeos` primarily depends on the active plugins and the options associated with those plugins. `nodeos` provides two distinct sets of options:
+
+* nodeos-specific options
+* plugin-specific options
+
+### Nodeos-specific options
+
+Nodeos-specific options exist primarily for administrative tasks, such as specifying the chain data directory, indicating the `config.ini` file, setting the logging configuration file's name and path, and so on. For the actual list of nodeos-specific options, run `nodeos --help` from the terminal and find the *Application Command Line Options* section at the end.
+
+### Plugin-specific options
+
+Plugin-specific options and the applicable plugins govern the actual behavior of the node. Each plugin-specific option has a distinct name, enabling it to be specified in any order within the command line or the `config.ini` file. When providing plugin-specific options, it is necessary to enable the corresponding plugin using the `--plugin option`, or else the related options will be discarded.
+
+> i To install the EOS node software, visit the *Binary Installation* section or the *Build and Install from Source* section within the [Leap](https://github.com/AntelopeIO/leap/blob/release/4.0/README.md) github project.