example contracts updated for pragma

apps/remix-ide/src/app/editor/examples.js

@@ -2,7 +2,7 @@
 
 const storage = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 
 /**
  * @title Storage
@@ -31,7 +31,7 @@ contract Storage {
 
 const owner = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 
 /**
  * @title Owner
@@ -83,7 +83,7 @@ contract Owner {
 
 const ballot = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 
 /** 
  * @title Ballot
@@ -223,7 +223,7 @@ contract Ballot {
 
 const ballotTest = `// SPDX-License-Identifier: GPL-3.0
 
-pragma solidity >=0.7.0 <0.8.0;
+pragma solidity >=0.7.0 <0.9.0;
 import "remix_tests.sol"; // this import is automatically injected by Remix.
 import "../contracts/3_Ballot.sol";