* improvements/fix typos

docker/gitian-bitcoin-host/README.md

@@ -1,35 +1,35 @@
-Building bitcoin with the gitian-builder host image
-===================================================
+Building bitcoin with a gitian-builder Docker container
+=======================================================
 
-This image currently supports only building of bitcoin 0.9.1, but it can be easily adapted to build other versions.
+This image allows automated gitian builds of bitcoin 0.9.1 using a docker container.
+Before proceeding make sure you have created the necessary *wheezy* and *gitian-host* images, see [these instructions](../gitian-host/README.md).
 
-It is based on https://github.com/bitcoin/bitcoin/blob/0.9.1/doc/release-process.md (and more recent versions).
+Afterwards you can create this image by running [this script](../scripts/create-gitian-bitcoin-host.sh).
 
-Before proceeding make sure you have created the necessary gdm85/wheezy and gdm85/gitian-host images, see [these instructions](../gitian-host/README.md).
-
-Afterwards you can create this image by running scripts/create-gitian-bitcoin-host.sh.
+NOTE: this image currently supports only building of bitcoin 0.9.1, but it can be easily adapted to build other versions.
 
 Preparing the gitian environment
 --------------------------------
 
-If you have already prepared the base VMs inside the gitian host container, all what you need to do is:
+If you have already prepared the base VMs (./build-base-vms.sh) inside the gitian host container, all what you need to do is:
 
 ```sh
 ssh -o SendEnv= debian@your-gitian-host ./build-bitcoin.sh
 ```
 
-That is a script that will build dependencies and bitcoin for both i386 and amd64 Linux architectures.
+[build-bitcoin.sh](build-bitcoin.sh) is a script that will download & build all the dependencies and then bitcoin itself, for both i386 and amd64 Linux architectures.
 
-**NOTE:** the SendEnv= is there to overcome an issue in gitian-builder that allows pollution of the LXC environment.
+**NOTE:** the SendEnv= is there to overcome an [issue](https://github.com/devrandom/gitian-builder/issues/56) in gitian-builder that allows pollution of the LXC environment.
 
 Signing
 -------
 
 Now you have completed the build of bitcoin and only the signing part is left.
-Before doing that, you can inspect that signatures are matching with other developers by peeking inside ~/gitian.sigs of the running container.
+Before doing that, you can verify if signatures are matching with those of [other developers](https://github.com/bitcoin/gitian.sigs) by peeking inside *~/gitian.sigs* of the running container.
+
+In order to sign you have to either put your private key in the container's *~/.gnupg* or perform the signing externally, at your option.
 
-In order to sign you have to either put your private key in the container's ~/.gnupg or perform the signing externally, at your option.
-If you have the private key in the container (so displayed by `gpg -K`), then you can use this script:
+If you have the private key in the container (also displayed by `gpg -K`), then you can use this script:
 ```bash
 #!/bin/bash
 set -e