Switch from the archived redis-docs to the new doc repo (#15383)

`redis-docs` got archived in March 2026, but we still referenced it in
some parts. We migrate them to the new `docs` repo.

This makes it easier for contributors to find where things are.

CONTRIBUTING.md

@@ -82,9 +82,9 @@ There is also an active community of Redis users at Stack Overflow:
 
     https://stackoverflow.com/questions/tagged/redis
 
-Issues and pull requests for documentation belong on the redis-doc repo:
+Issues and pull requests for documentation belong on the `docs` repo:
 
-    https://github.com/redis/redis-doc
+    https://github.com/redis/docs
 
 If you are reporting a security bug or vulnerability, see SECURITY.md.
 

src/commands/README.md

@@ -4,7 +4,7 @@ Each JSON contains all the information about the command itself, but these JSON
 Any third party who needs access to command information must get it from `COMMAND INFO` and `COMMAND DOCS`.
 The output can be extracted in a JSON format by using `redis-cli --json`, in the same manner as in `utils/generate-commands-json.py`.
 
-The JSON files are used to generate commands.def (and https://github.com/redis/redis-doc/blob/master/commands.json) in Redis, and
+The JSON files are used to generate commands.def (and https://github.com/redis/docs/blob/main/data/commands.json) in Redis, and
 despite looking similar to the output of `COMMAND` there are some fields and flags that are implicitly populated, and that's the
 reason one shouldn't rely on the raw files.
 

src/zmalloc.c

@@ -962,7 +962,7 @@ size_t zmalloc_get_frag_smallbins(void) {
  *
  * refresh_stats indicates whether to refresh cached statistics.
  * For the meaning of the other parameters, please refer to the function implementation
- * and INFO's allocator_* in redis-doc. */
+ * and INFO's allocator_* at https://redis.io/docs/latest/commands/info/ */
 int zmalloc_get_allocator_info(int refresh_stats, size_t *allocated, size_t *active, size_t *resident,
                                size_t *retained, size_t *muzzy, size_t *frag_smallbins_bytes)
 {
@@ -1015,7 +1015,7 @@ int zmalloc_get_allocator_info(int refresh_stats, size_t *allocated, size_t *act
  *
  * refresh_stats indicates whether to refresh cached statistics.
  * For the meaning of the other parameters, please refer to the function implementation
- * and INFO's allocator_* in redis-doc. */
+ * and INFO's allocator_* at https://redis.io/docs/latest/commands/info/ */
 int zmalloc_get_allocator_info_by_arena(unsigned int arena, int refresh_stats, size_t *allocated,
                                         size_t *active, size_t *resident, size_t *frag_smallbins_bytes)
 {