Fix code snippets in docs not passing tests on versions matching their pragmas

docs/types/reference-types.rst

@@ -243,7 +243,7 @@ individual elements:
 ::
 
     // SPDX-License-Identifier: GPL-3.0
-    pragma solidity >=0.4.0 <0.8.0;
+    pragma solidity >=0.4.16 <0.8.0;
 
     contract C {
         function f() public pure {
@@ -554,4 +554,4 @@ assigning it to a local variable, as in
 .. note::
     Until Solidity 0.7.0, memory-structs containing members of storage-only types (e.g. mappings)
     were allowed and assignments like ``campaigns[campaignID] = Campaign(beneficiary, goal, 0, 0)``
-    in the example above would work and just silently skip those members.
+    in the example above would work and just silently skip those members.