Fix formatting and add missing v2 label

website/usage/_spacy-101/_lightning-tour.jade

@@ -105,6 +105,7 @@ p
 
 +h(3, "lightning-tour-displacy") Visualize a dependency parse and named entities in your browser
     +tag-model("dependency parse", "NER")
+    +tag-new(2)
 
 +aside
     .u-text-center(style="overflow: auto").

website/usage/_spacy-101/_similarity.jade

@@ -28,7 +28,10 @@ p
     |  #[strong #[+procon("yes", "similar", false, 16)] similarity:] similar (higher is more similar) #[br]
     |  #[strong #[+procon("no", "dissimilar", false, 16)] similarity:] dissimilar (lower is less similar)
 
-+table(["", "dog", "cat", "banana"])
++table
+    +row("head")
+        for column in ["", "dog", "cat", "banana"]
+            +head-cell.u-text-center=column
     each cells, label in {"dog": [1, 0.8, 0.24], "cat": [0.8, 1, 0.28], "banana": [0.24, 0.28, 1]}
         +row
             +cell.u-text-label.u-color-theme=label

website/usage/_vectors-similarity/_in-context.jade

@@ -108,8 +108,7 @@ p
     - var examples = {"dog bites man": [1, 0.9, 0.89, 0.92], "man bites dog": [0.9, 1, 0.93, 0.9], "man dog bites": [0.89, 0.93, 1, 0.92], "dog man bites": [0.92, 0.9, 0.92, 1]}
     - var counter = 0
 
-    +row
-    +row
+    +row("head")
         +cell
         for _, label in examples
             +cell.u-text-center=label