List Texas atomics

- Create a separate table (following format of the first one
    with all the ops got kinda messy)

P.S.: Some of the subs appear to be undocumented
P.P.S: the docs for Texas/Unicode versions are duplicated; Wouldn't
    be easier to just list both variants with one description?
P.P.S.: Shouldn't ⚛+= and ⚛-= be called atomic-add-assign and atomic-sub-assign
    instead of atomic-add-fetch and atomic-sub-fetch, since ⚛= is atomic-assign,
    not atomic-fetch, which is just prefix:<⚛>

Author: zoffixznet

doc/Language/unicode_texas.pod6

@@ -110,7 +110,25 @@ equivalents] that have a special meaning in Perl 6.
   ⊖      |  U+2296   | (^)        |
   ⊍      |  U+228D   | (.)        |
   ⊎      |  U+228E   | (+)        |
+  ⊎      |  U+228E   | (+)        |
+
+=head2 Atomic Operators
 
+The atomic operators have C<U+269B ⚛ ATOM SYMBOL> incorporated into them. Their
+Texas equivalents are subroutines, which are as follows:
+
+=table
+  Symbol | Texas            | Remarks
+  =======|==================|=========================
+  ⚛=     | atomic-assign    |
+  ⚛      | atomic-fetch     | this is the prefix:<⚛> operator
+  ⚛+=    | atomic-add-fetch |
+  ⚛-=    | atomic-sub-fetch |
+  ++⚛    | atomic-inc-fetch |
+  ⚛++    | atomic-fetch-dec |
+  --⚛    | atomic-dec-fetch |
+  ⚛--    | atomic-fetch-dec |
+  
 =head1 Multiple codepoints
 
 This list contains multiple-codepoint operators that require special