change req meson version

gregzuro · bluca · commit 48538c19e518 · 2021-10-26T09:29:14.000+01:00
since `meson compile` first appears in 0.54.0
diff --git a/README b/README
@@ -197,7 +197,7 @@ REQUIREMENTS:
         python-jinja2
         python-lxml (optional, required to build the indices)
         python >= 3.5
-        meson >= 0.47 (>= 0.49 is required to build position-independent executables)
+        meson >= 0.53.2 (>= 0.54.0 is required to build with 'meson compile')
         ninja
         gcc, awk, sed, grep, and similar tools
         clang >= 10.0, llvm >= 10.0 (optional, required to build BPF programs
