modified turn in script for hw1 and slight edits for hw1 instructions

hw1/hw1.md

@@ -351,6 +351,12 @@ Note that it's possible that there aren't any pending changes in the upstream re
 
 All CSE 414 assignments are to be completed **INDIVIDUALLY**! However, you may discuss your high-level approach to solving each lab with other students in the class (and you are always welcome to discuss with any of the course staff).
 
+
+### Regrades
+
+We will pushing feedback on the assignment to your repo. For regrading, please post a *private message to the staff* on [Piazza](piazza.com/washington/spring2018/cse414) *within one week* after you receive the staff feedback. Unfortunately we will not be able to handle late regrade requests.
+
+
 ### Submitting your assignment
 
 You may submit your code multiple times; we will use the latest version you submit that arrives 

turnInHw.sh → turnIn_Hw1.sh

 #!/bin/bash
-test -z "$1" && echo "Usage example: $0 hw1" && exit 1
+
+hw=hw1
 
 #check no uncommitted changes.
 (git status | grep -q modified:) &&  echo  'Error. There are uncommitted changes in your working directory. You can do "git status" to see them.
 Please commit or stash uncommitted changes before submitting' && exit 1
 COMMIT=$(git log | head -n 1 |  cut -b 1-14)
-if (git tag $1 2>/dev/null)
+if (git tag $hw 2>/dev/null)
 then
-    echo "Created tag '$1' pointing to $COMMIT"
+    echo "Created tag '$hw' pointing to $COMMIT"
 else
-    git tag -d $1 && git tag $1
-    echo "Re-creating tag '$1'... (now $COMMIT)"
+    git tag -d $hw && git tag $hw
+    echo "Re-creating tag '$hw'... (now $COMMIT)"
 fi
 echo "Now syncing with origin..."
 git push origin --mirror #--atomic
-echo "Please verify on GitLab that your tag '$1' matches what you expect. "
+echo "Please verify in gitlab that your tag '$hw' matches what you expect. "