update readme.

README.md

@@ -1,2 +1,38 @@
-# taggr
-Create git tags without cloning repository
+# Taggr
+
+<p align="center">
+  <a href="https://github.com/PackagrIO/docs">
+  <img width="300" alt="portfolio_view" src="https://github.com/PackagrIO/bumpr/raw/master/images/bumpr.png">
+  </a>
+</p>
+
+Language agnostic tool to create Git Tag without cloning a repository.
+
+# Documentation
+Full documentation is available at [PackagrIO/docs](https://github.com/PackagrIO/docs)
+
+
+# Usage
+
+```
+cd /path/to/git/repo
+cat pkg/version/version.go
+# const VERSION = "0.0.3"
+
+# export PACKAGR_PACKAGE_TYPE=[major/minor/patch]
+packagr-taggr create --scm github \
+--name analogj/golang_analogj_test \
+--sha ab1b5d4536a521c5797e749db34a281b9be5f68d \
+--tag v2.0.0
+```
+
+# Inputs
+- `scm`
+- `scm_repo_full_name`
+- `scm_repo_tag_name`
+- `scm_repo_sha`
+
+# Logo
+
+- [chevron By Travis Avery, US ](https://thenounproject.com/travisavery/collection/ui-ux-circles-solid/?i=2453786)
+