feat: update docs (#65)

projects/bzl7/README.md

@@ -1,15 +1,3 @@
 # bzl7
 
-This project can execute various C++ and python targets with different gcc toolchains using bazel 7.
-
-Check the `.bazelrc` file to see what configurations are supported.
-
-## Go
-
-We use Gazelle to generate the `BUILD.bazel` files for this project. Simply do:
-```
-# generates the BUILD files
-bazel run gazelle
-# executes the binary
-bazel run //go/gazelle
-```
+This is the root of the `bzl7` project. Check each language folder for various examples.

projects/bzl7/cpp/README.md

@@ -0,0 +1,7 @@
+# cpp
+
+This project can execute various C++ and python targets with different gcc toolchains using bazel 7.
+
+Check the `.bazelrc` file to see what configurations are supported.
+
+For the `boost` example, we rely on Nix providing the dependencies.

projects/bzl7/go/README.md

@@ -0,0 +1,9 @@
+# go
+
+We use Gazelle to generate the `BUILD.bazel` files for this project. Simply do:
+```
+# generates the BUILD files
+bazel run gazelle
+# executes the binary
+bazel run //go/gazelle
+```

projects/bzl7/python/README.md

@@ -0,0 +1,23 @@
+# python
+
+## hello world
+
+It is possible to execute this script using various toolchains:
+```
+bazel run --config=python310 //python/hello_world:main
+bazel run --config=python311 //python/hello_world:main
+bazel run --config=python312 //python/hello_world:main
+```
+
+## pip example
+To update the requirements file, simply run:
+```
+ bazel run //python/pip:python_requirements.update
+```
+
+Now you may execute:
+```
+bazel run //python/pip:main
+```
+
+Note only the default toolchain is supported currently.