More concise about bytecode compat

Author: Sainan

docs/Introduction.md

@@ -12,9 +12,8 @@ Pluto is a superset of Lua 5.4 designed to assist with general-purpose programmi
 Despite the immense additions, Pluto remains highly compatible with Lua:
 - (Mostly) compatible with Lua 5.4 source code.
   - Our only breakage is the addition of new keywords, which causes conflicts when those keywords are used as identifiers. However, Pluto leverages parser heuristics and — in cases where parser heuristics fail — [Compatibility Mode](<Compatibility#compatibility-mode>) to eliminate this concern. Most Lua 5.4 source code will execute flawlessly on Pluto.
-- Bytecode compatible for the Lua version it's based on. (e.g, 5.4.8)
-  - Capable of executing Lua bytecode, and also generates bytecode that Lua can execute.
-  - Most of Pluto's features generate bytecode that is backwards-compatible with Lua. New features that are not bytecode backwards-compatible will say so in their documentation.
+- Reads and writes Lua 5.4 bytecode meaning it's forwards- and backwards-compatible.
+  - Only some Pluto features generate backwards-incompatible bytecode, but they will say so in their documentation.
 - Actively rebases with Lua's main repository. We are not a time-frozen dialect. When Lua 5.5 releases, we intend on updating to that.
 
 With Compatibility Mode, Pluto has been dropped into large communities and did not break any existing scripts.