Update README.md

wording

README.md

@@ -3,9 +3,6 @@ ENSIFER 0.1.20
 
 A small Model-T-style enfilade in C with an S7 Scheme FFI.
 
-The point of this package is to make the core mechanism usable without making
-the reader learn the whole Xanadu/Green vocabulary first.
-
 Start with [`doc/USAGE`](doc/USAGE) if you are new to the code. Read
 [`doc/ensifer.7`](doc/ensifer.7) for the conceptual overview,
 [`doc/enfilade.3`](doc/enfilade.3) for the C API, and
@@ -20,7 +17,7 @@ An enfilade is a tree indexed by tumbler fields.
 
 A tumbler is written as a dotted sequence of unsigned integers:
 
-    1.2.3
+    1.2.3Tree-sitter Query
 
 Putting:
 
@@ -72,8 +69,7 @@ RANGE
 -----
 -----
 
-`enfilade-get-range` is deliberately unchanged from the existing interface.
-It ranges over the numeric keys at the current enfilade level:
+`enfilade-get-range` ranges over the numeric keys at the current enfilade level:
 
     (enfilade-get-range e 1 3)