refactor!: Neovim 0.8.0+ only

Please pin to the `neovim-0.7.0` tag for compatibility

.github/workflows/ci.yml

@@ -22,8 +22,6 @@ jobs:
             url: https://github.com/neovim/neovim/releases/download/nightly/nvim-linux64.tar.gz
           - os: ubuntu-20.04
             url: https://github.com/neovim/neovim/releases/download/v0.8.0/nvim-linux64.tar.gz
-          - os: ubuntu-20.04
-            url: https://github.com/neovim/neovim/releases/download/v0.7.0/nvim-linux64.tar.gz
 
     steps:
       - uses: actions/checkout@v2
@@ -61,7 +59,7 @@ jobs:
         uses: kdheepak/panvimdoc@main
         with:
           vimdoc: persisted.nvim
-          version: "Neovim >= 0.7.0"
+          version: "Neovim >= 0.8.0"
           demojify: true
           treesitter: true
       - name: Push changes

README.md

@@ -26,7 +26,7 @@ Forked from <a href="https://github.com/folke/persistence.nvim">Persistence.nvim
 
 ## :zap: Requirements
 
-- Neovim >= 0.7.0
+- Neovim >= 0.8.0
 
 ## :package: Installation