tREADME: add instructions - aoc22 - advent of code 2022 solutions
 (HTM) git clone git://src.adamsgaard.dk/aoc22
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 (DIR) README
       ---
 (DIR) commit 08f1c03418679c7ceb516b80aa3b667fd429a6af
 (DIR) parent 5c4ba98d33ce2868c8288b95b925f9f2828c568d
 (HTM) Author: Anders Damsgaard <anders@adamsgaard.dk>
       Date:   Thu,  1 Dec 2022 12:31:00 +0000
       
       README: add instructions
       
       Diffstat:
         M README                              |       2 +-
       
       1 file changed, 1 insertion(+), 1 deletion(-)
       ---
 (DIR) diff --git a/README b/README
       t@@ -1,4 +1,4 @@
        my solutions to advent of code 2022
        https://adventofcode.com/
        
       -to be run on plan9/9front.
       +to be run on plan9/9front, by running `mk` in each dir.