chore(docs): add readme

README.md

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+# adopure.nvim
+
+The plugin provides an opinionated workflow to interact with Azure DevOps Pull Requests.
+
+## Installation
+
+- Requires Neovim >= 0.10
+- Installation:
+``` lua
+{
+    "Willem-J-an/adopure.nvim",
+    dependencies = {
+        "nvim-lua/plenary.nvim",
+        "nvim-telescope/telescope.nvim"
+    },
+    config = function()
+        vim.g.adopure = {}
+    end,
+}
+```
+
+## Usage
+```
+:AdoPure    [ load ] [ context | threads ] [ opts ]
+            [ open ] [ quickfix | thread_picker | new_thread | existing_thread ] [ opts ]
+            [ submit ] [ comment | vote | thread_status ] [ opts ]
+```
+
+command | subcommand | description
+-- | -- | --
+load | " " | Loads specified argument into state.
+" " | context | Load open pull requests; prompt user to pick one.
+" " | threads | Fetch comment threads from Azure DevOps.
+open | " " | Opens specified argument in the editor.
+" " | quickfix | Open comment threads in quickfix window.
+" " | thread_picker | Open a picker with all comment threads.
+" " | new_thread | Opens a window to write a comment on code selection.
+" " | existing_thread | Opens a window with an existing comment thread.
+submit | " " | Submits specified argument to Azure DevOps.
+" " | comment | Submit new comment or reply; must be in new_thread or existing_thread window.
+" " | vote | Submit a new vote on the pull request.
+" " | thread_status | Submit a thread_status change; must be in existing_thread window.