Revise documentation

docs/configure.md

@@ -5,7 +5,7 @@
 All resources HanLP use will be cached into a directory called `HANLP_HOME`. 
 It is an environment variable which you can customize to any path you like. 
 By default, `HANLP_HOME` resolves to `~/.hanlp` and `%appdata%\hanlp` on *nix and Windows respectively. 
-If you want to temporally redirect `HANLP_HOME` to a different location, say `/data/hanlp`, the following shell command can be very helpful.
+If you want to redirect `HANLP_HOME` to a different location, say `/data/hanlp`, the following shell command can be very helpful.
 
 ```bash
 export HANLP_HOME=/data/hanlp

docs/contributing.md

@@ -15,7 +15,7 @@ project.
 Get the source code of this project using git:
 
 ```bash
-git clone https://github.com/hankcs/HanLP
+git clone https://github.com/hankcs/HanLP --branch master
 cd HanLP
 pip install -e plugins/hanlp_trie
 pip install -e plugins/hanlp_common
@@ -30,7 +30,7 @@ To work on this project, you need Python 3.6 or newer.
 This project has a test suite to ensure certain important APIs work properly. The tests can be run using:
 
 ```console
-$ python -m unittest discover ./tests
+python -m unittest discover ./tests
 ```
 
 :::{tip}

docs/install.md

@@ -44,6 +44,12 @@ See [Golang instructions](https://hanlp.hankcs.com/docs/api/restful_golang.html)
 
 The native package running locally can be installed via pip.
 
+````{margin} **Install from Source**
+```{note}
+See [development guideline](https://hanlp.hankcs.com/docs/contributing.html#development).
+```
+````
+
 ```
 pip install hanlp
 ```