updated fluepdot.py to a class

  so that multiple instances can be created

updated README.md accordingly

Author: KS-HTK

src/fluepdot/fluepdot.py

@@ -165,5 +165,4 @@ def _get(self, endpoint: str, get: GetParam = {}) -> Response:
 
 
 if __name__ == "__main__":
-    fd = Fluepdot("http://module.local")
-    fd.post_text("Hello World!")
+    pass