[hackers][sbase][PATCH] readme: add mention of a seperate testing repo

---
The original subject was
"[hackers][sbase][PATCH v3] testing: add first shell-based tests"
I put the testing code into a seperate repo and just added a blurp about
it to the README. Let me know if this works for you.
Currently the code is hosted on my own server but we could also change
that.
Changes compared to v3:
* put the code into a seperate testing repo
 README | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
diff --git a/README b/README
index da2e500..b993f43 100644
--- a/README
+++ b/README
_AT_@ -125,6 +125,22 @@ individual tools to sbase-box or run: make sbase-box-install
 Ideally you will  want to statically link sbase.  If  you are on Linux
 we recommend using musl-libc[2].
 
+
+Testing
+-------
+
+There is a (still young) seperate testing repo[3] which you can clone
+by running:
+
+git clone  https://sillymon.ch/git/unixtoolstesting.git
+
+inside the root of your sbase repo. Inside this cloned directory you can
+then run the './runalltests' shell script to run the existing (functional)
+tests. You are very welcome to write more tests and send them as patches
+to either the suckless hackers mailing list or to the mailing list of
+the project at ~shugyousha/public-inbox_AT_lists.sr.ht .
+
+
 Portability
 -----------
 
_AT_@ -138,3 +154,4 @@ You can build sbase with gcc, clang, tcc, nwcc and pcc.
 
 [1] http://git.suckless.org/ubase/
 [2] http://www.musl-libc.org/
+[3] https://sillymon.ch/cgit/unixtoolstesting/
-- 
2.20.0