Added pre-install doc for G2P and TN modules and updated the dependency version of pypinyin, test=doc

docs/requirements.txt

@@ -27,7 +27,7 @@ pattern_singleton
 Pillow>=9.0.0
 praatio==5.0.0
 prettytable
-pypinyin
+pypinyin<=0.44.0
 pypinyin-dict
 python-dateutil
 pyworld==0.2.12

examples/other/g2p/README.md

@@ -9,6 +9,9 @@ We use `WER` as an evaluation criterion.
 Run the command below to get the results of the test.
 
 ```bash
+cd ../../../tools
+bash extras/install_sclite.sh
+cd -
 ./run.sh
 ```
 

examples/other/tn/README.md

@@ -5,6 +5,9 @@ We use `CER` as an evaluation criterion.
 ## Start
 Run the command below to get the results of the test.
 ```bash
+cd ../../../tools
+bash extras/install_sclite.sh
+cd -
 ./run.sh
 ```
 The `avg CER` of text normalization is: 0.00730093543235227