Added a blurb on how the curly braces can be skipped on hashes if the…

…y are a last param to a function

primitives_and_other_basics.md

@@ -114,7 +114,7 @@ a = { status: 'zombie', name:'Katie', id: 5 }
 a[:status] #Same as a['status']
 ``` 
 
-####Alternate notation for key value seperators using ```=>```
+####Alternate notation for key value seperators using the hashrocket: ```=>```
 
 Instead of using ```:``` to seperate key value pairs, In Ruby, one can also use ```=>``` instead.
 
@@ -134,6 +134,17 @@ stuff = {
 };
 ```
 
+####Ommitting the ```{}```
+
+When passing a hash to a function, if the hash is the last parameter, the ```{}``` can be ommitted. 
+
+So if there is a method ```foo``` that takes in 1 hash as a parameter:
+
+```
+foo({ 'status' => 'zombie' }) # This...
+foo('status' => 'zombie')     # is the same as this
+```
+
 ###via Hash.new:
 
 Hash.new takes in an optional parameter for the default value. If set, anytime a non-existent key is accessed or an operation is done on a key that has no value, this default value is returned instead.