update doc

docs-static/usage.md

@@ -1,6 +1,7 @@
 # Usage
 
 ## Installation
+
 From master repository:
 
     python -m pip install git+https://chacha.ddns.net/gitea/chacha/pygitversionhelper.git@master
@@ -14,6 +15,7 @@ From public repository:
     TBD
 
 ## Import in your project
+
 Add this line on the top of your python script:
 
     #from pygitversionhelper import gitversionhelper
@@ -23,6 +25,7 @@ Add this line on the top of your python script:
     #from pygitversionhelper import gitversionhelperException
     
 ## Basic API
+
 All the API commands are static and so it is not needed to create instantiate any object.
 
 They are all executed in the current active directory.
@@ -33,12 +36,14 @@ One easy way to change directory:
     os.chdir("<YOUR DIRECTORY>")
 
 ### sublib: repository 
+
 To check if a repository is dirty:
 
     if gitversionhelper.repository.isDirty():
         print("repository is dirty")
 
 ### sublib: tag 
+
 List all tags (default to taggerdate order):
 
     for tag in gitversionhelper.tag.getTags():
@@ -67,6 +72,7 @@ Get the distance from HEAD to last tag (only on same branch):
     print(f"number of commit since last tag: {gitversionhelper.tag.getDistanceFromTag(same_branch=True)}")
     
 ### sublib: version 
+
 Get the last found version in the repository (return MetaVersion object):
 
     print(f"most recent repository version: {gitversionhelper.tag.getLastVersion()}")
@@ -100,6 +106,8 @@ kwargs available to those function:
     - output_format: string to choose a rendering format ("Auto","PEP440" or "SemVer")
 
 ## Limitations
+
+There is unfortunately some technical limitation :
 - MultiThreading and async behavior is not tested.
 - Multiple tag on the same commit is not supported.
 - Branch filter when searching for a version is only tested with -no-ff strategy