Miminal PHP version update in README

README.md

@@ -1,7 +1,7 @@
 # <img align="right" src="img/github.png" alt="JSON Machine" />
 
 Very easy to use and memory efficient drop-in replacement for inefficient iteration of big JSON files or streams
-for PHP >=7.0. See [TL;DR](#tl-dr). No dependencies in production except optional `ext-json`. README in sync with the code
+for PHP >=7.2. See [TL;DR](#tl-dr). No dependencies in production except optional `ext-json`. README in sync with the code
 
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