Document LF_SOURCE_GEN_DIRECTORY and fix one link

Author: edwardalee

docs/reference/target-declaration.mdx

@@ -161,7 +161,7 @@ A command to execute after code generation instead of the default compile comman
 - `LF_CURRENT_WORKING_DIRECTORY`: The directory in which the command is invoked.
 - `LF_SOURCE_DIRECTORY`: The directory containing the .lf file being compiled.
 - `LF_PACKAGE_DIRECTORY`: The directory for the root of the project or package (normally the directory above the `src` directory).
-- `LF_SOURCE_GEN_DIRECTORY`: The directory in which generated files are placed.
+- `LF_SOURCE_GEN_DIRECTORY`: The directory in which generated files and any files in the [files](#files) target directive are placed.
 - `LF_BIN_DIRECTORY`: The directory into which to put binaries.
 
 The command will be executed in the same directory as the `.lf` file being compiled. For example, if you specify
@@ -400,6 +400,7 @@ This target does not support the `files` option.
 </ShowIf>
 <ShowIf c py>
 The `files` target parameter specifies array of files or directories to be copied to the directory that contains the generated sources.
+The full path to that directory is available in C code via the `LF_SOURCE_GEN_DIRECTORY` macro.
 
 <ShowOnly c>
 ```lf-c

docs/reference/target-language-details.mdx

@@ -2443,8 +2443,7 @@ is equivalent to
 In the `Delay` reactor, the reaction to the input `_in` declares as its effect
 the action `a`. This declaration makes it possible for the reaction to schedule
 a future triggering of `a` using the
-[`a.schedule()`](<../reference/target-language-details.mdx#schedule-functions>)
-method.
+`a.schedule()` method available on [actions](#actions)
 
 The first reaction declares that it is triggered by `a` and has effect `out`. To
 read the value, it uses the `a.value` syntax. Because this reaction is first,
@@ -2863,6 +2862,7 @@ Reactions in C can use a number of pre-defined functions, macros, and constants
 
   - LF_SOURCE_DIRECTORY: A C string giving the full path to the directory containing the `.lf` file of the program.
   - LF_PACKAGE_DIRECTORY: A C string giving the full path to the directory that is the root of the project or package (normally, the directory above the `src` directory).
+  - LF_SOURCE_GEN_DIRECTORY: The directory in which generated files and any files in the [files](target-declaration#files) target directive are placed.
   - LF_FILE_SEPARATOR: A C string giving the file separator for the platform containing the `.lf` file ("/" for Unix-like systems, "\\" for Windows).
 
 These are useful when your application needs to open and read additional files. For example, the following C code can be used to open a file in a subdirectory called `dir` of the directory that contains the `.lf` file:

versioned_docs/version-0.5.0/reference/target-language-details.mdx

@@ -2411,8 +2411,7 @@ is equivalent to
 In the `Delay` reactor, the reaction to the input `_in` declares as its effect
 the action `a`. This declaration makes it possible for the reaction to schedule
 a future triggering of `a` using the
-[`a.schedule()`](<../reference/target-language-details.mdx#schedule-functions>)
-method.
+`a.schedule()` method available on [actions](#actions)
 
 The first reaction declares that it is triggered by `a` and has effect `out`. To
 read the value, it uses the `a.value` syntax. Because this reaction is first,

versioned_docs/version-0.6.0/reference/target-language-details.mdx

@@ -2411,8 +2411,7 @@ is equivalent to
 In the `Delay` reactor, the reaction to the input `_in` declares as its effect
 the action `a`. This declaration makes it possible for the reaction to schedule
 a future triggering of `a` using the
-[`a.schedule()`](<../reference/target-language-details.mdx#schedule-functions>)
-method.
+`a.schedule()` method available on [actions](#actions)
 
 The first reaction declares that it is triggered by `a` and has effect `out`. To
 read the value, it uses the `a.value` syntax. Because this reaction is first,

versioned_docs/version-0.7.0/reference/target-language-details.mdx

@@ -2441,8 +2441,7 @@ is equivalent to
 In the `Delay` reactor, the reaction to the input `_in` declares as its effect
 the action `a`. This declaration makes it possible for the reaction to schedule
 a future triggering of `a` using the
-[`a.schedule()`](<../reference/target-language-details.mdx#schedule-functions>)
-method.
+`a.schedule()` method available on [actions](#actions)
 
 The first reaction declares that it is triggered by `a` and has effect `out`. To
 read the value, it uses the `a.value` syntax. Because this reaction is first,

versioned_docs/version-0.8.0/reference/target-language-details.mdx

@@ -2441,8 +2441,7 @@ is equivalent to
 In the `Delay` reactor, the reaction to the input `_in` declares as its effect
 the action `a`. This declaration makes it possible for the reaction to schedule
 a future triggering of `a` using the
-[`a.schedule()`](<../reference/target-language-details.mdx#schedule-functions>)
-method.
+`a.schedule()` method available on [actions](#actions)
 
 The first reaction declares that it is triggered by `a` and has effect `out`. To
 read the value, it uses the `a.value` syntax. Because this reaction is first,

versioned_docs/version-0.9.0/reference/target-declaration.mdx

@@ -160,7 +160,7 @@ A command to execute after code generation instead of the default compile comman
 - `LF_CURRENT_WORKING_DIRECTORY`: The directory in which the command is invoked.
 - `LF_SOURCE_DIRECTORY`: The directory containing the .lf file being compiled.
 - `LF_PACKAGE_DIRECTORY`: The directory for the root of the project or package (normally the directory above the `src` directory).
-- `LF_SOURCE_GEN_DIRECTORY`: The directory in which generated files are placed.
+- `LF_SOURCE_GEN_DIRECTORY`: The directory in which generated files and any files in the [files](#files) target directive are placed.
 - `LF_BIN_DIRECTORY`: The directory into which to put binaries.
 
 The command will be executed in the same directory as the `.lf` file being compiled. For example, if you specify
@@ -399,6 +399,7 @@ This target does not support the `files` option.
 </ShowIf>
 <ShowIf c py>
 The `files` target parameter specifies array of files or directories to be copied to the directory that contains the generated sources.
+The full path to that directory is available in C code via the `LF_SOURCE_GEN_DIRECTORY` macro.
 
 <ShowOnly c>
 ```lf-c

versioned_docs/version-0.9.0/reference/target-language-details.mdx

@@ -2441,8 +2441,7 @@ is equivalent to
 In the `Delay` reactor, the reaction to the input `_in` declares as its effect
 the action `a`. This declaration makes it possible for the reaction to schedule
 a future triggering of `a` using the
-[`a.schedule()`](<../reference/target-language-details.mdx#schedule-functions>)
-method.
+`a.schedule()` method available on [actions](#actions)
 
 The first reaction declares that it is triggered by `a` and has effect `out`. To
 read the value, it uses the `a.value` syntax. Because this reaction is first,
@@ -2856,6 +2855,7 @@ Reactions in C can use a number of pre-defined functions, macros, and constants
 
   - LF_SOURCE_DIRECTORY: A C string giving the full path to the directory containing the `.lf` file of the program.
   - LF_PACKAGE_DIRECTORY: A C string giving the full path to the directory that is the root of the project or package (normally, the directory above the `src` directory).
+  - LF_SOURCE_GEN_DIRECTORY: The directory in which generated files and any files in the [files](target-declaration#files) target directive are placed.
   - LF_FILE_SEPARATOR: A C string giving the file separator for the platform containing the `.lf` file ("/" for Unix-like systems, "\\" for Windows).
 
 These are useful when your application needs to open and read additional files. For example, the following C code can be used to open a file in a subdirectory called `dir` of the directory that contains the `.lf` file: