awk: import from sources

src/cmd/awk/README

@@ -0,0 +1,13 @@
+This 'awk' source is directly downloaded from the Plan 9 source
+
+http://cm.bell-labs.com/sources/plan9/sys/src/cmd/awk/
+
+as such, it's copyright is held by Lucent Technologies and distributed under the
+Lucent Public License version 1.02 [http://www.opensource.org/licenses/lucent1.02.php].
+
+Modifications were made by Jeff Sickel in order to build using Plan 9 from User
+Space [http://swtch.com/plan9port/] to the following files:
+
+    mkfile
+    re.c
+