Fix table on unicode_texas page

Possibly relevant issue: #1510

doc/Language/unicode_texas.pod6

@@ -125,15 +125,15 @@ The Texas alternatives are as follows:
 =table
   Symbol | Texas            | Remarks
   ===============================================================
-  C<⚛=>  | atomic-assign    |
-  C<⚛>   | atomic-fetch     | this is the prefix:<⚛> operator
-  C<⚛+=> | atomic-add-fetch |
-  C<⚛-=> | atomic-sub-fetch |
-  C<⚛−=> | atomic-sub-fetch | this operator uses U+2212 minus sign
-  C<++⚛> | atomic-inc-fetch |
-  C<⚛++> | atomic-fetch-inc |
-  C<--⚛> | atomic-dec-fetch |
-  C<⚛--> | atomic-fetch-dec |
+  ⚛=  | atomic-assign    |
+  ⚛   | atomic-fetch     | this is the prefix:<⚛> operator
+  ⚛+= | atomic-add-fetch |
+  ⚛-= | atomic-sub-fetch |
+  ⚛−= | atomic-sub-fetch | this operator uses U+2212 minus sign
+  ++⚛ | atomic-inc-fetch |
+  ⚛++ | atomic-fetch-inc |
+  --⚛ | atomic-dec-fetch |
+  ⚛-- | atomic-fetch-dec |
 
 =head1 Multiple codepoints