nvim: add treesitter-context plugin

.config/nvim/lua/blake/plugins.lua

@@ -8,6 +8,7 @@ if fn.empty(fn.glob(install_path)) > 0 then
 end
 -- }}
 
+-- set packer threads {{
 -- Reduce the maximum number of jobs in termux (a terminal for android) or if WEAK_SYSTEM is set to true
 if (os.getenv("TERMUX_VERSION") ~= nil) or (os.getenv("WEAK_SYSTEM") == "true") then
    Packer_max_jobs = 5
@@ -16,6 +17,7 @@ else
 end
 
 local use = require('packer').use
+-- }}
 
 return require('packer').startup({function()
    -- TODO: Find a better way to organize this
@@ -111,6 +113,11 @@ return require('packer').startup({function()
       end
    }
 
+   -- Tree-sitter
+   use { -- treesitter-context:        equivalent to vsc*de's "sticky scrolling"
+      'nvim-treesitter/nvim-treesitter-context'
+   }
+
    -- IDE features
    ---- LSP
    use { -- lspinstall:                language server installer, (lspconfig is here too)