Add README.md

Author: arne-vl

README.md

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+# tree-sitter-taskr
+This is the tree-sitter parser for taskr. Currently only provides highlighting.
+
+## Manual configuration
+1. Put this snippet in your nvim-treesiter configuration.
+```lua
+local parser_config = require("nvim-treesitter.parsers").get_parser_configs()
+parser_config.taskr = {
+ install_info = {
+ url = "https://github.com/arne-vl/tree-sitter-taskr",
+ files = { "src/parser.c" },
+ branch = "main",
+ generate_requires_npm = true,
+ requires_generate_from_grammar = true,
+ },
+ filetype = "taskrfile",
+}
+```
+
+2. Restart `nvim` and install the parser using `:TSInstall taskr`
+3. Copy the contents of `queries/taskr/highlights.scm` into `~/.config/nvim/queries/taskr/highlights.scm`
+4. Restart `nvim`.