index.html: better introduction in the first paragraph

Until now, the first paragraph of the top page wasn't clear about
exactly what Maneage is (for someone who is new to the term "data
lineage"). Also, there was no mention of Maneage's license.

With this commit, the previous first paragraph has been broken into
two. The first paragraph is almost fully new and gives a basic
introduction for someone who isn't familiar with the terms "data
lineage" or "data provenance". The second paragraph stars with the
license of Maneage and then goes into the links with the papers and
vidoes and etc.

Both these issues were raised by Richard Stallman.

1 files changed, 10 insertions, 4 deletions

diff --git a/index.html b/index.html
index 7571074..d2e6e31 100644
--- a/index.html
+++ b/index.html
@@ -74,10 +74,16 @@
                             <h2>Managing Data Lineage</h2>
                         </div>
                     </div>
-                    <p class="clear">Maneage is a framework for having full control over a project's data lineage (thus producing a <a href="http://akhlaghi.org/reproducible-science.html">reproducible result</a>).
-                      Maneage is a recipient of the <a href="https://www.rd-alliance.org/node/64603">RDA Europe Adoption grant</a> and was featured in a Nature Astronomy "<a href="https://doi.org/10.1038/s41550-021-01402-3">News and Views</a>" article (Kuttel 2021, <a href="https://rdcu.be/cmYVx">free-to-read link</a>).
-                      To learn more about its founding criteria and a basic introduction, see Akhlaghi et al. (2021), <a href="https://doi.org/10.1109/MCSE.2021.3072860">published in CiSE</a> (Gold Open Access), also available in <a href="https://arxiv.org/abs/2006.03018">arXiv:2006.03018</a> (with extended appendix in one PDF).
-                      You can also watch the short talk linked below or see this published <a href="https://www.rd-alliance.org/sites/default/files/RDA%20adoption%20story_IAC_final.pdf">RDA Adoption story</a> (a short PDF).
+                    <p class="clear">Maneage is a customizable workflow (implemented in GNU Make), providing low-level control over a project's data lineage.
+		      Data lineage or data provenance refer to keeping track of how data evolves within a project.
+		      For example the process of converting raw data from external data bases to a final plot in the published paper/report (this usually involves many different analysis steps and depends on many software packages).
+		      Therefore Maneage is used for producing a <a href="http://akhlaghi.org/reproducible-science.html">reproducible result</a> (which is a critical issue in modern scientific data analysis).
+		      The name "Maneage" is a <a href="https://en.wikipedia.org/wiki/Portmanteau">portmanteau</a>; created by merging the first three characters of "manage" with the last four characters of "lineage".</p>
+
+                    <p>Maneage is <a href="https://www.gnu.org/philosophy/free-sw.en.html">free software</a> and released under <a href="https://www.gnu.org/licenses/gpl-3.0.en.html">GNU GPL v3+</a>.
+		      To learn more about its founding criteria and a basic introduction, see Akhlaghi et al. (2021), <a href="https://doi.org/10.1109/MCSE.2021.3072860">published in CiSE</a> (Gold Open Access), also available in <a href="https://arxiv.org/abs/2006.03018">arXiv:2006.03018</a> (with extended appendix in one PDF).
+		      Maneage is a recipient of the <a href="https://www.rd-alliance.org/node/64603">RDA Europe Adoption grant</a> and was featured in a Nature Astronomy "<a href="https://doi.org/10.1038/s41550-021-01402-3">News and Views</a>" article (Kuttel 2021, <a href="https://rdcu.be/cmYVx">free-to-read link</a>).
+                      You can also watch the short "Video presentation of Maneage" below, or see this published <a href="https://www.rd-alliance.org/sites/default/files/RDA%20adoption%20story_IAC_final.pdf">RDA Adoption story</a> (a short PDF).
                     </p>
 
                     <img class="center" src="img/project-flow.svg" width="85%" />