Update README.md

README.md

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 # Pecab
+<a href="https://github.com/hyunwoongko/pecab/releases"><img alt="GitHub release" src="https://img.shields.io/github/release/hyunwoongko/pecab.svg" /></a> 
+<a href="https://github.com/hyunwoongko/pecab/issues"><img alt="Issues" src="https://img.shields.io/github/issues/hyunwoongko/pecab"/></a>
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 Pecab is pure python Korean morpheme analyzer based on [Mecab](https://github.com/taku910/mecab).
 Mecab is a CRF-based morpheme analyzer made by Taku Kudo at 2011. It is very fast and accurate at the same time, which is why it is still very popular even though it is quite old.
 However, it is known to be one of the most tricky libraries to install, and in fact many people have had a hard time installing Mecab.
@@ -140,4 +143,4 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-```
+```