Rename parser page to focus on why it's relevant to users

manual/book.toml

@@ -8,3 +8,4 @@ description = "The official manual for difftastic, the syntactic differ"
 
 [output.html.redirect]
 "/getting_started.html" = "./installation.html"
+"/upstream_parsers.html" = "/languages_supported.html"

manual/src/SUMMARY.md

@@ -6,7 +6,7 @@
   - [Git](./git.md)
   - [Mercurial](./mercurial.md)
 - [Parsing](./parsing.md)
-  - [Upstream Parsers](./upstream_parsers.md)
+  - [Languages Supported](./languages_supported.md)
   - [Vendoring](./parser_vendoring.md)
   - [Adding A Parser](./adding_a_parser.md)
 - [Diffing](./diffing.md)

manual/src/languages_supported.md

@@ -1,4 +1,4 @@
-# Upstream Parsers
+# Languages Supported
 
 Difftastic supports the following programming languages.
 
@@ -31,7 +31,7 @@ Difftastic supports the following programming languages.
 | TypeScript, TSX | [tree-sitter/tree-sitter-typescript](https://github.com/tree-sitter/tree-sitter-typescript)                                                           |
 | Zig             | [maxxnino/tree-sitter-zig](https://github.com/maxxnino/tree-sitter-zig)                                                                               |
 
-It also supports the following structured text formats.
+Difftastic also supports the following structured text formats.
 
 | Language | Parser Used                                                                     |
 |----------|---------------------------------------------------------------------------------|