reorganize homeworks structure for parts 1-3

src/homework/02-git/2.3/branching/merge.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+# display command line options
+
+count=1
+while [[ -n "$1" ]]; do
+    echo "Parameter #$count = $1"
+    count=$(( $count + 1 ))
+    shift
+done

src/homework/02-git/2.3/branching/rebase.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+# display command line options
+
+count=1
+for param in "$@"; do
+    echo "Next parameter: $param"
+    count=$(( $count + 1 ))
+done
+
+echo "====="

src/homework/02-git/2.3/readme.md

@@ -0,0 +1,2 @@
+Выполнение [домашнего задания](https://github.com/netology-code/sysadm-homeworks/blob/devsys10/02-git-03-branching/README.md)
+по теме "Ветвления в Git".