Fix a handful of typos (#3605)

docs/content/manual/v1.6/manual.yml

@@ -2432,7 +2432,7 @@ sections:
       which to place the data.
 
       It is also possible to define functions in jq, although this is
-      is a feature whose biggest use is defining jq's standard library
+      a feature whose biggest use is defining jq's standard library
       (many jq functions such as `map` and `select` are in fact written
       in jq).
 
@@ -2514,7 +2514,7 @@ sections:
               . as {realnames: $names, posts: [$first, $second]} | ...
 
           The variable declarations in array patterns (e.g., `. as
-          [$first, $second]`) bind to the elements of the array in from
+          [$first, $second]`) bind to the elements of the array from
           the element at index zero on up, in order.  When there is no
           value at the index for an array pattern element, `null` is
           bound to that variable.