Add derizin script and workflow description

sys/derizin.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+if [ "$1" = "-h" ]; then
+cat <<EOF
+Usage:
+
+Clone and inspect latest commits:
+
+  git clone https://github.com/rizinorg/rizin
+  cd rizin
+  git format-patch -100
+  vim . # press p over the file name to preview the patch
+
+In another terminal in the root of r2:
+
+  sys/derizin.sh < rizin/0032* > p;git am --abort; git am -3 p
+
+If the above command fails do it manually:
+
+  patch -p1 < p
+
+And create the fake commit like this:
+
+  AUTHOR="`grep p ^From:|cut -d : -f 2-`"
+  git commit --author "$AUTHOR" -a
+
+Be careful with new files, you will need to add them with
+
+  git add missing-file.c
+
+PD: Open the 'p' file in a split in vim to copypaste the
+commit message from the subject of the formatted patch.
+EOF
+exit 0
+fi
+
+
+sed \
+ -e 's,_ANALYSIS_,_ANAL_,g' \
+ -e 's,RAnalysis,RAnal,g' \
+ -e 's,RZ_,R_,g' \
+ -e 's,rz_,r_,g' \
+ -e 's,rz-test,r2r,g' \
+ -e 's,librz,libr,g' \
+ -e 's,binrz,binr,g' \
+ -e 's,rizin,radare2,g' \
+ -e 's,Rz,R,g'