Merge pull request ceph#59788 from zdover23/wip-doc-2024-09-14-README-md-command-formatting

doc/README.md: create selectable commands

Reviewed-by: Anthony D'Atri <[email protected]>

Author: zdover23

README.md

@@ -81,15 +81,15 @@ To build Ceph, follow this procedure:
    contains `do_cmake.sh` and `CONTRIBUTING.rst`.
 2. Run the `do_cmake.sh` script:
 
-    ``./do_cmake.sh``
+       ./do_cmake.sh
 
    ``do_cmake.sh`` by default creates a "debug build" of Ceph, which can be 
    up to five times slower than a non-debug build. Pass 
    ``-DCMAKE_BUILD_TYPE=RelWithDebInfo`` to ``do_cmake.sh`` to create a 
    non-debug build.
 3. Move into the `build` directory:
 
-    ``cd build``
+       cd build
 4. Use the `ninja` buildsystem to build the development environment:
 
        ninja -j3
@@ -120,11 +120,11 @@ To build Ceph, follow this procedure:
 
    To build only certain targets, run a command of the following form:
 
-	``ninja [target name]``
+       ninja [target name]
 
 5. Install the vstart cluster:
 
-	``ninja install``
+       ninja install
 
 ### CMake Options