feat: add parser tiers

Tier 1: Stable
Tier 2: Core (maintained by org members)
Tier 3: Community (maintained by external contributors, to varying
degree)
Tier 4: Unsupported (lacking active maintainer or declared
experimental); skipped in lockfile update and ignored for automatic
install by default

1 files changed, 2 insertions, 2 deletions

diff --git a/README.md b/README.md
index 4f2970883..48857e877 100644
--- a/README.md
+++ b/README.md
@@ -53,11 +53,11 @@ require('lazy').setup(
 
 ```lua
 require'nvim-treesitter'.setup {
-  -- A list of parser names or tiers ('core', 'stable', 'community', 'unstable')
+  -- A list of parser names or tiers ('stable', 'core', 'community', 'unsupported')
   ensure_install = { },
 
   -- List of parsers to ignore installing
-  ignore_install = { },
+  ignore_install = { 'unsupported' },
 
   -- Automatically install missing parsers when entering buffer
   auto_install = false,