Final README change

README.md

@@ -16,3 +16,19 @@ Run `pish.out` in bin/ to run the program
 
 ## Alternative
 Run `make exec` in the base folder to compile and run program
+
+# What works and doesn't
+Successfully tested:
+    As long as the command works alone in Pish, .pishrc is fully functional
+    Single commands such as "echo hello world" run fine
+    Pipes split commands into parts
+    Signals are ignored
+    Built in commands such as cd and exit work
+    Commands are forked and then exec'd after being split by pipes if any
+    Pish prompt works and parses properly
+
+Unsuccessfully tested:
+    Redirection operators are found, but not acted upon
+    Pipes don't redirect i/o into other commands (i.e. ps aux | grep 'Z')
+    Environmental variables being handled by Pish
+