DOC: add document in README

Author: Dengda98

README.md

@@ -9,7 +9,7 @@
   <img alt="GitHub License" src="https://img.shields.io/github/license/Dengda98/PyGRT">
 </p>
 
-(Detailed documentation is coming soon...)
+[**中文文档**](https://pygrt.readthedocs.io/zh-cn/)
 
 # Overview
 [**PyGRT**](https://github.com/Dengda98/PyGRT): An Efficient and Integrated Python Package for Computing Synthetic Seismograms in a Layered Half-Space Model.   

docs/source/Tutorial/index.rst

@@ -69,7 +69,7 @@
 计算 **静态解** 的过程相同，只是函数名称和程序名称有变化。
 
 
-以下是一些简易教程，可快速上手。
+以下是一些简易教程，可快速上手。Github主页的 :rst:dir:`example/` 文件夹中有更多示例，可在 `Github Releases <https://github.com/Dengda98/PyGRT/releases>`_ 中下载。
 
 
 .. toctree::

docs/source/Tutorial/static/run/grn_head

@@ -0,0 +1,7 @@
+#     4.90000000e+00     2.80000000e+00     2.60000000e+00
+#     3.40000000e+00     1.70000000e+00     2.30000000e+00
+#            X(km)             Y(km)               EXZ               EXR               VFZ               VFR               HFZ               HFR               HFT               DDZ               DDR               DSZ               DSR               DST               SSZ               SSR               SST
+   -3.00000000e+00   -2.50000000e+00    6.62041942e-05    2.14344244e-04   -6.26326794e-04   -5.28708305e-04    1.09585660e-04    1.26788076e-03    6.47897423e-04   -6.98661070e-05   -1.67287387e-04    1.75325169e-04    5.16393265e-04   -1.02063333e-05    1.23548856e-04    5.16181552e-04    6.90866245e-05
+   -2.85000000e+00   -2.50000000e+00    7.23652536e-05    2.24931922e-04   -6.57236742e-04   -5.49268183e-04    1.20927613e-04    1.30932473e-03    6.74534069e-04   -7.02674876e-05   -1.56506292e-04    1.93584436e-04    5.51851270e-04   -9.19019203e-06    1.35461392e-04    5.37007354e-04    7.20630879e-05
+   -2.70000000e+00   -2.50000000e+00    7.90312841e-05    2.35858382e-04   -6.89550994e-04   -5.70380531e-04    1.32934844e-04    1.35116800e-03    7.01888796e-04   -6.96676966e-05   -1.43189944e-04    2.13613579e-04    5.89027481e-04   -8.01891266e-06    1.48163689e-04    5.57869307e-04    7.51148818e-05
+...