Fixes gh-1355 Tarantool-PHP documentation review (from tarantool/tarantool repo)

Author: lenkis

README.PACK.md

@@ -1,19 +1,24 @@
-RPM Package
+RPM package
 ===============================================================================
 
-To build an RPM run:
+To build an RPM package, run:
 ```
 git archive --format tar ${VERSION} | gzip -9 > ${HOME}/rpmbuild/SOURCES/${VERSION}.tar.gz
 cp rpm/tarantool.ini ${HOME}/rpmbuild/SOURCES/
 rpmbuild -bb rpm/php-tarantool.spec
 ```
-When the build ends you'll find an RPM in `${HOME}/rpmbuild/(x86_64|i386)/`
-Current `${VERSION}` is `0.0.5`
 
-DEBIAN Package
+When the build is completed, you'll find an RPM package in `${HOME}/rpmbuild/(x86_64|i386)/`.
+The current `${VERSION}` is `0.0.5`.
+
+DEBIAN package
 ===============================================================================
+
 To build a DEB package, run `fakeroot debian/rules binary` in the root.
 
-PECL Package
+PECL package
 ===============================================================================
-You must have PEAR/PECL Installed in your system, and then `pear package` in the root
+
+You must have PEAR/PECL installed in your system.
+
+To build a PECL package, run `pear package` in the root.