typos and clarification on signing commits (#6940)

* cosmetic: fix typos
* Add missing piece to the PR template

Signed-off-by: Michael Sorens <msorens@styra.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -25,6 +25,8 @@ For more information on contributing to OPA see:
 
 * [Contributing Guide](https://www.openpolicyagent.org/docs/latest/contributing/)
   for high-level contributing guidelines and development setup.
+  (See the [Developer Certificate of Origin](https://www.openpolicyagent.org/docs/latest/contrib-code/#developer-certificate-of-origin)
+  section for specifics on signing off a commit.)
 
 -->
 

ast/builtins.go

@@ -1181,7 +1181,7 @@ var Split = &Builtin{
 			types.Named("x", types.S).Description("string that is split"),
 			types.Named("delimiter", types.S).Description("delimiter used for splitting"),
 		),
-		types.Named("ys", types.NewArray(nil, types.S)).Description("splitted parts"),
+		types.Named("ys", types.NewArray(nil, types.S)).Description("split parts"),
 	),
 	Categories: stringsCat,
 }
@@ -1247,7 +1247,7 @@ var Trim = &Builtin{
 
 var TrimLeft = &Builtin{
 	Name:        "trim_left",
-	Description: "Returns `value` with all leading instances of the `cutset` chartacters removed.",
+	Description: "Returns `value` with all leading instances of the `cutset` characters removed.",
 	Decl: types.NewFunction(
 		types.Args(
 			types.Named("value", types.S).Description("string to trim"),
@@ -1273,7 +1273,7 @@ var TrimPrefix = &Builtin{
 
 var TrimRight = &Builtin{
 	Name:        "trim_right",
-	Description: "Returns `value` with all trailing instances of the `cutset` chartacters removed.",
+	Description: "Returns `value` with all trailing instances of the `cutset` characters removed.",
 	Decl: types.NewFunction(
 		types.Args(
 			types.Named("value", types.S).Description("string to trim"),
@@ -1356,7 +1356,7 @@ var RenderTemplate = &Builtin{
 // Marked non-deterministic because it relies on RNG internally.
 var RandIntn = &Builtin{
 	Name:        "rand.intn",
-	Description: "Returns a random integer between `0` and `n` (`n` exlusive). If `n` is `0`, then `y` is always `0`. For any given argument pair (`str`, `n`), the output will be consistent throughout a query evaluation.",
+	Description: "Returns a random integer between `0` and `n` (`n` exclusive). If `n` is `0`, then `y` is always `0`. For any given argument pair (`str`, `n`), the output will be consistent throughout a query evaluation.",
 	Decl: types.NewFunction(
 		types.Args(
 			types.Named("str", types.S),
@@ -1750,7 +1750,7 @@ var JSONUnmarshal = &Builtin{
 		types.Args(
 			types.Named("x", types.S).Description("a JSON string"),
 		),
-		types.Named("y", types.A).Description("the term deseralized from `x`"),
+		types.Named("y", types.A).Description("the term deserialized from `x`"),
 	),
 	Categories: encoding,
 }
@@ -1914,7 +1914,7 @@ var YAMLUnmarshal = &Builtin{
 		types.Args(
 			types.Named("x", types.S).Description("a YAML string"),
 		),
-		types.Named("y", types.A).Description("the term deseralized from `x`"),
+		types.Named("y", types.A).Description("the term deserialized from `x`"),
 	),
 	Categories: encoding,
 }
@@ -1951,7 +1951,7 @@ var HexDecode = &Builtin{
 		types.Args(
 			types.Named("x", types.S).Description("a hex-encoded string"),
 		),
-		types.Named("y", types.S).Description("deseralized from `x`"),
+		types.Named("y", types.S).Description("deserialized from `x`"),
 	),
 	Categories: encoding,
 }

builtin_metadata.json

@@ -7034,7 +7034,7 @@
     "description": "Deserializes the hex-encoded input string.",
     "introduced": "v0.25.0-rc2",
     "result": {
-      "description": "deseralized from `x`",
+      "description": "deserialized from `x`",
       "name": "y",
       "type": "string"
     },
@@ -11493,7 +11493,7 @@
     "description": "Deserializes the input string.",
     "introduced": "v0.17.0",
     "result": {
-      "description": "the term deseralized from `x`",
+      "description": "the term deserialized from `x`",
       "name": "y",
       "type": "any"
     },
@@ -14993,7 +14993,7 @@
       "v0.67.1",
       "edge"
     ],
-    "description": "Returns a random integer between `0` and `n` (`n` exlusive). If `n` is `0`, then `y` is always `0`. For any given argument pair (`str`, `n`), the output will be consistent throughout a query evaluation.",
+    "description": "Returns a random integer between `0` and `n` (`n` exclusive). If `n` is `0`, then `y` is always `0`. For any given argument pair (`str`, `n`), the output will be consistent throughout a query evaluation.",
     "introduced": "v0.31.0",
     "result": {
       "description": "random integer in the range `[0, abs(n))`",
@@ -17307,7 +17307,7 @@
     "description": "Split returns an array containing elements of the input string split on a delimiter.",
     "introduced": "v0.17.0",
     "result": {
-      "description": "splitted parts",
+      "description": "split parts",
       "name": "ys",
       "type": "array[string]"
     },
@@ -19875,7 +19875,7 @@
       "v0.67.1",
       "edge"
     ],
-    "description": "Returns `value` with all leading instances of the `cutset` chartacters removed.",
+    "description": "Returns `value` with all leading instances of the `cutset` characters removed.",
     "introduced": "v0.17.0",
     "result": {
       "description": "string left-trimmed of `cutset` characters",
@@ -20135,7 +20135,7 @@
       "v0.67.1",
       "edge"
     ],
-    "description": "Returns `value` with all trailing instances of the `cutset` chartacters removed.",
+    "description": "Returns `value` with all trailing instances of the `cutset` characters removed.",
     "introduced": "v0.17.0",
     "result": {
       "description": "string right-trimmed of `cutset` characters",
@@ -22061,7 +22061,7 @@
     "description": "Deserializes the input string.",
     "introduced": "v0.17.0",
     "result": {
-      "description": "the term deseralized from `x`",
+      "description": "the term deserialized from `x`",
       "name": "y",
       "type": "any"
     },