fix level requirements, level picker

resources/level_requirements.yml

@@ -1,7 +1,7 @@
 ---
 # level_name: {branch_name: [machines_to_provision]}
-level2: [{level2a, null}, {level2b, {10, "SQL injection"}}]
-level3: [{level3, null}]
-level4: [{level4a, null}, {level4b, {30, "John the Ripper"}}]
-level5: [{level5, null}]
+level2: [[level2a, null], [level2b, [10, "SQL injection"]]]
+level3: [[level3, null]]
+level4: [[level4a, null], [level4b, [30, "John the Ripper"]]]
+level5: [[level5, null]]
 ...

resources/tools.yml

@@ -1,6 +1,6 @@
 ---
-metamask: null
-SQL injection: {10, level2b}
-nmap: null
-John the Ripper: {30, level4b}
+- metamask
+- SQL injection
+- nmap
+- John the Ripper
 ...