Rename Tutorials to Proving Grounds; Update campaign map unit id usage

CMBW-maps/campaign/Proving Grounds/manifest.yml

@@ -1,6 +1,6 @@
-name: Tutorials
+name: Proving Grounds
 description: >
-  These sandbox-style tutorials give you a steady sparring partner to practice strategy, army compositions, and build orders against, all while introducing you to each race's primary faction!
+  These sandbox-style scenarios give you a steady sparring partner to practice strategy, army compositions, and build orders against, all while introducing you to each race's primary faction!
   
   
   Watch the replays to learn even more!
@@ -14,7 +14,7 @@ missions:
       Enough of the war games, son! You're in the big leagues, now.
       
       
-      This is the Terran sandbox.
+      This is the Terran proving grounds.
     background: images\furthernotice.pcx
   - name: The Initiate
     filename: 2. The Initiate.scx
@@ -22,14 +22,14 @@ missions:
       A rising justicar and his Jury investigate aberrant reports within an abandoned Terran colony.
       
       
-      This is the Protoss sandbox.
+      This is the Protoss proving grounds.
     background: images\theinitiate.pcx
   - name: Autophagy
     description: >
       The Ataltreth Tendril observes a fledgling organ's first test against a withered appendage.
       
       
-      This is the Zerg sandbox.
+      This is the Zerg proving grounds.
     filename: 3. Autophagy.scx
     background: images\autophagy.pcx
       

CMBW-maps/campaign/Sovereign Saga/manifest.yml

@@ -3,7 +3,7 @@ description: >
   Experience the original Starcraft campaign like never before: at Cosmonarchy's magnificent scale!
   
   
-  Sovereign Saga is an authentic ascendancy of the classic experience.
+  Sovereign Saga is an authentic ascendancy of the classic experience. It includes a beginner's tutorial!
 author: Pr0nogo
 mission_select_type: ListBox
 background: images\marsara.pcx