Add install script

README.md

@@ -14,8 +14,8 @@ Install diff-edit directly using pip:
 Or install from source:
 
     git clone https://github.com/ahamilton/diff-edit
-    pip install --upgrade pip  # A recent version of pip is needed.
-    pip install --use-deprecated=legacy-resolver ./diff-edit
+    cd diff-edit
+    ./install
 
 Then to run:
 

install

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+
+set -e
+
+
+sudo apt-get install -y python3-pip
+python3 -m pip install --upgrade pip
+python3 -m pip install --use-deprecated=legacy-resolver $1 ./