change steps for using the dorelease script

Author: vladak

doc/release.txt

@@ -32,12 +32,7 @@ usually it's overall coverage above 80%)
 
 The release is OK, once above is fullfilled to our satisfaction.
 
-3) tag the build used for release so we can get back to it:
-
-   git tag 0.XYZ
-   git push origin --tags
-
-4) produce proper distributions
+3) produce proper distributions
 
 Check them before upload, always try to build on Solaris, since gnu tar might
 create a non-standard compliant .tgz version and tag from step 0) will be used
@@ -71,25 +66,11 @@ number (0.12))
 0.12.0.<k>    ~       0.12.0.1.<k>
 ...
 
-5) Upload them using https://github.com/OpenGrok/OpenGrok/releases
-
-   Note that the files has to be stored in a ZIP file for github to accept
-   them so use incantation like follows:
-
-     cd dist/
-     ls -1 *.p5p *.pkg *.tar.gz | while read file; do
-       echo $file | zip -0 -@ $file.zip;
-     done
-
-   Uploading from behing a proxy does not work so it is recommended to use
-   direct internet connection.
-
-   Also generate cryptographic digests for all the binaries,
-   e.g. using openssl:
+4) Create the release and upload the files via GitHub API:
 
-     openssl dgst -sha256 <file1> <file2> ..
+   ./tools/dorelease.py -d -u <github_login> \
+       -D "some release description" \
+       -t <tag> dist/*.p5p dist/*.pkg dist/*.tar.gz
 
-   and paste them next to the uploaded files.
+   Note: for pre-releases use the -P option
 
-   Note that the files with packages have to be gzipped otherwise github
-   upload does not allow them.