add v2.0 Beta release variants

sample.txt

@@ -0,0 +1,19 @@
+Myna
+ABCDEFGHJIKLMNOPQRSTUVWXYZ
+abcdefghjiklmnopqrstuvwxyz
+1234567890(){}[]/\<>,.;:`'
+
+# Perl
+$_="krjhruaesrltre c a cnP,ohet";$_.=$1,print$2while s/(..)(.)//;print"\n"
+
+-- Haskell
+mapM_ print . take 10 . iterate (\n -> if even n then n `div` 2 else 3*n + 1)
+
+# bash
+find . -name "*.log" -mtime +30 -exec gzip {} \; | tee audit.txt | wc -l
+
+// Rust
+(0..10).map(|x| x*x).filter(|&x| x%2==0).collect::<Vec<_>>()
+
+⍝ APL
+life ← { ⊃1 ⍵ ∨.∧ 3 4 = +/ +⌿ ¯1 0 1 ∘.⊖ ¯1 0 1 ⌽¨ ⊂⍵ }