Again minor cosmetics. [skip ci]

doc/install.rst

@@ -14,9 +14,9 @@ and several CPU architectures (x86-64, 64-bit ARM and 64-bit PowerPC).
 
 heyoka has the following **mandatory** dependencies:
 
-* the `LLVM <https://llvm.org/>`__ compiler infrastructure library (version >= 13 and <=18),
-* the `Boost <https://www.boost.org/>`__ C++ libraries (version >= 1.69),
-* the `{fmt} <https://fmt.dev/latest/index.html>`__ library (version >=9 and <= 10),
+* the `LLVM <https://llvm.org/>`__ compiler infrastructure library (version >=13 and <=18),
+* the `Boost <https://www.boost.org/>`__ C++ libraries (version >=1.69),
+* the `{fmt} <https://fmt.dev/latest/index.html>`__ library (version >=9 and <=10),
 * the `spdlog <https://github.com/gabime/spdlog>`__ library,
 * the `TBB <https://github.com/oneapi-src/oneTBB>`__ library.