Add link to the pyproject.toml for setting up pre-commit hook (#885)

[etc/vim.git] / README.md

diff --git a/README.md b/README.md
index 9d8310101af882fa600dce91daea5e8df79408c0..c9039aa066d5a71de8af002a4d5640894aa6cdaf 100644 (file)
--- a/README.md
+++ b/README.md
@@ -910,7 +910,7 @@ Then run `pre-commit install` and you're ready to go.
 
 Avoid using `args` in the hook.  Instead, store necessary configuration
 in `pyproject.toml` so that editors and command-line usage of Black all
-behave consistently for your project.  See *Black*'s own `pyproject.toml`
+behave consistently for your project.  See *Black*'s own [pyproject.toml](/pyproject.toml)
 for an example.
 
 If you're already using Python 3.7, switch the `language_version`
@@ -933,6 +933,10 @@ is:
 `file-mode` is an int flag that determines whether the file was formatted as 3.6+ only,
 as .pyi, and whether string normalization was omitted.
 
+To override the location of these files on macOS or Linux, set the environment variable
+`XDG_CACHE_HOME` to your preferred location. For example, if you want to put the cache in
+the directory you're running *Black* from, set `XDG_CACHE_HOME=.cache`. *Black* will then
+write the above files to `.cache/black/<version>/`.
 
 ## Used by