Update INSTALL.markdown

ttodua · michael-grunder · commit 09a095e72003 · 2021-10-05T14:35:56.000-07:00
As a quick-hint to simplify process for many newcomers.
diff --git a/INSTALL.markdown b/INSTALL.markdown
@@ -14,6 +14,8 @@ pickle install redis
 To build this extension for the sources tree:
 
 ~~~
+git clone https://github.com/phpredis/phpredis.git
+cd phpredis
 phpize
 ./configure [--enable-redis-igbinary] [--enable-redis-msgpack] [--enable-redis-lzf [--with-liblzf[=DIR]]] [--enable-redis-zstd]
 make && make install
