readme add codeblock annotations

README.md

@@ -337,7 +337,7 @@ Many instructions have two forms:
 - 3 args ... explicit source and destination
 - 2 args ... destination is also used as the first argument
 
-```
+```lisp
 ; Test properties of a value - zero, positive, negative
 (tst SRC)
 
@@ -421,7 +421,7 @@ This module defines dynamic size integer buffers.
 
 A buffer needs to be created using one of the init instructions:
 
-```
+```lisp
 ; Create an empty buffer and store its handle into a register
 (mkbf Wr)
 
@@ -438,7 +438,7 @@ A buffer needs to be created using one of the init instructions:
 
 Primitive buffer ops (position is always 0-based)
 
-```
+```lisp
 ; Get buffer size
 (bfsz Wr @Obj)
 
@@ -457,7 +457,7 @@ Primitive buffer ops (position is always 0-based)
 
 Whole buffer manipulation:
 
-```
+```lisp
 ; Resize the buffer. Removes trailing elements or inserts zero to match the new size.
 (bfrsz @Obj Rd:len)
 
@@ -473,7 +473,7 @@ Whole buffer manipulation:
 
 Stack-style buffer ops:
 
-```
+```lisp
 ; Push (insert at the end)
 (bfpush @Obj Rd)
 
@@ -504,7 +504,7 @@ NOTE: Logging can significantly reduce crsn run speed.
 Make sure the log level is at not set to "trace" when you need high-speed updates, 
 such as animations.
 
-```
+```lisp
 ; Initialize the screen (opens a window)
 (sc-init WIDTH HEIGHT)
 
@@ -552,7 +552,7 @@ such as animations.
 
 You can use these special handles in almost all instructions:
 
-```
+```lisp
 (cmp @stdin 'y' 
     (eq? (ld @stdout '1'))
     (ne? (ld @stdout '0')))