Fix the pages in the manual for Lix

This doesn't comprehensively fix everything outdated in the manual, or
make the manual greatly better, but it does note down where at least
jade noticed it was wrong, and it does fix all the instances of
referencing Nix to conform to the style guide to the best of our
ability.

A lot of things have been commented out for being wrong, and there are
three types of FIXME introduced:

- FIXME(Lix): generically Lix needs to fix it
- FIXME(Qyriad): re https://git.lix.systems/lix-project/lix/issues/215
- FIXME(meson): docs got outdated by meson changes and need rewriting

I did fix a bunch of it that I could, but there could certainly be
mistakes and this is definitely just an incremental improvement.

Fixes: https://git.lix.systems/lix-project/lix/issues/266
Change-Id: I5993c4603d7f026a887089fce77db08394362135

1 files changed, 5 insertions, 5 deletions

diff --git a/doc/manual/src/language/advanced-attributes.md b/doc/manual/src/language/advanced-attributes.md
index a5ad47a93..ec21b9990 100644
--- a/doc/manual/src/language/advanced-attributes.md
+++ b/doc/manual/src/language/advanced-attributes.md
@@ -116,7 +116,7 @@ Derivations can declare some infrequently used optional attributes.
     These attributes declare that the derivation is a so-called
     *fixed-output derivation*, which means that a cryptographic hash of
     the output is already known in advance. When the build of a
-    fixed-output derivation finishes, Nix computes the cryptographic
+    fixed-output derivation finishes, Lix computes the cryptographic
     hash of the output and compares it to the hash declared with these
     attributes. If there is a mismatch, the build fails.
 
@@ -241,7 +241,7 @@ Derivations can declare some infrequently used optional attributes.
     then when the builder runs, the environment variable `bigPath`
     will contain the absolute path to a temporary file containing `a
     very long string`. That is, for any attribute *x* listed in
-    `passAsFile`, Nix will pass an environment variable `xPath`
+    `passAsFile`, Lix will pass an environment variable `xPath`
     holding the path of the file containing the value of attribute
     *x*. This is useful when you need to pass large strings to a
     builder, since most operating systems impose a limit on the size
@@ -256,13 +256,13 @@ Derivations can declare some infrequently used optional attributes.
     the cost of building locally.
 
   - [`allowSubstitutes`]{#adv-attr-allowSubstitutes}\
-    If this attribute is set to `false`, then Nix will always build this
+    If this attribute is set to `false`, then Lix will always build this
     derivation; it will not try to substitute its outputs. This is
     useful for very trivial derivations (such as `writeText` in Nixpkgs)
     that are cheaper to build than to substitute from a binary cache.
 
     You may disable the effects of this attibute by enabling the
-    `always-allow-substitutes` configuration option in Nix.
+    `always-allow-substitutes` configuration option in Lix.
 
     > **Note**
     >
@@ -284,7 +284,7 @@ Derivations can declare some infrequently used optional attributes.
     [`outputChecks`](#adv-attr-outputChecks) for example.
 
     As a convenience to Bash builders,
-    Nix writes a script that initialises shell variables
+    Lix writes a script that initialises shell variables
     corresponding to all attributes that are representable in Bash. The
     environment variable `NIX_ATTRS_SH_FILE` points to the exact
     location of the script, both in a build and a