Small fix

Author: ebranlard

README.md

@@ -2,7 +2,7 @@
 <a href="https://www.buymeacoffee.com/hTpOQGl" rel="nofollow"><img alt="Donate just a small amount, buy me a coffee!" src="https://warehouse-camo.cmh1.psfhosted.org/1c939ba1227996b87bb03cf029c14821eab9ad91/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f446f6e6174652d4275792532306d6525323061253230636f666665652d79656c6c6f77677265656e2e737667"></a>
 # viz3Danim
 
-Interactive visualization of 3D structures, mode shapes and animations, using a json file format (described [here](json-file-format)).
+Interactive visualization of 3D structures, mode shapes and animations, using a json file format (described [here](#json-file-format)).
 
 
 [![Demo](/../main/ressources/figs/demo.gif)](https://ebranlard.github.io/viz3Danim/index.html?load=examples/OC4_Jacket_All.sum.json)

legacy/subDynModeViz.py

@@ -129,7 +129,7 @@ def NodesDisp( IDOF, UDOF, maxDisp=None, sortDim=None):
 
     print('>>> Reading yaml file:',subDynSumFile)
     if os.path.splitext(subDynSumFile)[1].lower() != '.yaml':
-        raise Exception('File etension should be .yaml, file:'+subDynSumFile)
+        raise Exception('File extension should be .yaml, file:'+subDynSumFile)
     data =yaml_read(subDynSumFile)
 
     DOF2Nodes = data['DOF2Nodes']
@@ -234,7 +234,7 @@ def abort_with_usage():
 
     # adding viz3danim to python path. Not clean, but this is legacy code anyway
     sys.path.append(viz3danimDir)
-    from webapp import Serverimport
+    from webapp import Server
 
     # Based on command line arguments, convert subdyn file, and/or open local server
     if len(sys.argv) ==2 and sys.argv[1]=='--open':