New translations pubsubstreams.mdx (Ukrainian)

website/pages/uk/substreams/pubsubstreams.mdx

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+---
+title: Publishing a Substreams Package
+---
+
+Learn how to publish a Substreams package to the [Substreams Registry](https://substreams.dev).
+
+## Overview
+
+### What is a package?
+
+A Substreams package is a precompiled binary file that defines the specific data you want to extract from the blockchain, similar to the `mapping.ts` file in traditional subgraphs.
+
+## Publish a Package
+
+### Передумови
+
+- You must have the Substreams CLI installed.
+- You must have a Substreams package (`.spkg`) that you want to publish.
+
+### Step 1: Run the `substreams publish` Command
+
+1. In a command-line terminal, run `substreams publish <YOUR-PACKAGE>.spkg`.
+
+2. If you do not have a token set in your computer, navigate to `https://substreams.dev/me`.
+
+![get token](/img/1_get-token.png)
+
+### Step 2: Get a Token in the Substreams Registry
+
+1. In the Substreams Registry, log in with your GitHub account.
+
+2. Create a new token and copy it in a safe location.
+
+![new token](/img/2_new_token.png)
+
+### Step 3: Authenticate in the Substreams CLI
+
+1. Back in the Substreams CLI, paste the previously generated token.
+
+![paste token](/img/3_paste_token.png)
+
+2. Lastly, confirm that you want to publish the package.
+
+![confirm](/img/4_confirm.png)
+
+That's it! You have succesfully published a package in the Substreams registry.
+
+![success](/img/5_success.png)
+
+## Додаткові матеріали
+
+Visit [Substreams](https://substreams.dev/) to explore a growing collection of ready-to-use Substreams packages across various blockchain networks.