README.md: list "vendor" installation first

It's probably _more reliable_ to just vendor the plugin in your project, so
list that method first.

README.md

@@ -22,10 +22,24 @@ Please vendor the plugin as described below, or you _will_ get broken.
 
 ### To always use this plugin:
 
+#### Vendor
+
+* copy `src/tox_ignore_env_name_mismatch.py` to the root of your project
+  directory as `toxfile.py`
+
+This uses the tox4's new ["inline
+plugin"](https://tox.wiki/en/latest/plugins.html#module-tox.plugin) approach
+instead of relying on the provisioning system (which [can be disabled via
+CLI](https://tox.wiki/en/latest/cli_interface.html#tox---no-provision)).
+
 #### Install/provision
 
-* Specify `requires = tox-ignore-env-name-mismatch ~= 0.2.0` in the `[tox]`
-  section of `tox.ini`
+```
+[tox]
+min_version = 4.3.3
+requires =
+    tox-ignore-env-name-mismatch ~= 0.2.0
+```
 
 This will cause `tox` to provision a new virtualenv for `tox` itself and other
 dependencies named in the
@@ -35,22 +49,17 @@ environment does not meet the specification.
 Pinning the plugin to a minor version is _highly recommended_ to avoid breaking
 changes.
 
-#### Vendor
-
-* copy `src/tox_ignore_env_name_mismatch.py` to the root of your project
-  directory as `toxfile.py`
-
-This uses the tox4's new ["inline
-plugin"](https://tox.wiki/en/latest/plugins.html#module-tox.plugin) approach
-instead of relying on the provisioning system (which [can be disabled via
-CLI](https://tox.wiki/en/latest/cli_interface.html#tox---no-provision)).
+NOTE: tox < 4.3.3 had [a bug](https://github.com/tox-dev/tox/issues/2862) which
+prevented this type of installation.
 
 ## Example
 
 ```
 [tox]
 envlist = py39,py310,py311,lint,format,types
-requires = tox-ignore-env-name-mismatch ~= 0.2.0
+min_version = 4.3.3
+requires =
+    tox-ignore-env-name-mismatch ~= 0.2.0
 
 [testenv]
 deps = pytest
@@ -111,4 +120,4 @@ To upgrade to v0.2, change `ignore_env_name_mismatch = true` to `runner = ignore
 
 ### v0.1 - 2023-01-14
 
-Initial Release
+Initial Release