add tags, update description and changelog

readme.txt

@@ -1,6 +1,6 @@
 === Citations tools ===
 Contributors: ulaulaman
-Tags: doi, citations, research
+Tags: doi, citations, research, blog, blogging, research blogging
 Requires at least: 4.8.5
 Tested up to: 4.9.2
 Requires PHP: 7.0.18
@@ -14,20 +14,20 @@ The plugin add some shortcodes add a link to a paper using the doi code or to re
 Using the standard for doi link, the plugin introduce a shortcode in order to create a link to a paper provided by doi.
 How to use the shortcode:
 
-[cpdoi code="..."]Title of the paper[/doi]
+[ctdoi code="..."]Title of the paper[/doi]
 
 The plugin send the doi code to [Crossref Metadata Search](https://search.crossref.org/), get the information and publish a full citation in apa standard with the shortcode [cpdoiresolve ...].
 How to use the shortcode:
 
-[cpdoiresolve code="..."]
+[ctdoiresolve code="..."]
 
 There are also two optional parameters:
 
-[cpdoiresolve code="..." arxiv="..."]
+[ctdoiresolve code="..." arxiv="..."]
 
 if the paper has an arXiv version
 
-[cpdoiresolve code="..." pdfurl="..."]
+[ctdoiresolve code="..." pdfurl="..."]
 
 if the paper has a free pdf version
 
@@ -43,9 +43,10 @@ if the paper has a free pdf version
 3. Use the shortcode into your posts or pages.
 
 == Changelog ==
-0.2.4 changed functions names
-0.2.3 add pdf link in doi resolver as ahortcode's parameter
-0.2.2 add arXiv link in doi resolver as shortcode's parameter
-0.2.1 add doi link in doi resolver
-0.2 add shortcode to resolve doi using code
-0.1 shortcode for doi link
+* 0.2.5 fix error code
+* 0.2.4 changed functions names
+* 0.2.3 add pdf link in doi resolver as ahortcode's parameter
+* 0.2.2 add arXiv link in doi resolver as shortcode's parameter
+* 0.2.1 add doi link in doi resolver
+* 0.2 add shortcode to resolve doi using code
+* 0.1 shortcode for doi link