Updated README with build instructions

Added build instructions to the README
Added installer script to README
Updated support links

Author: matt-kimball

README.md

@@ -1,3 +1,5 @@
+![allocscope banner](https://allocscope.com/banner.png)
+
 # allocscope
 ### a memory tracking tool
 
@@ -13,6 +15,37 @@ allocation functions such as `malloc` it tracks allocations made by that process
 allocations made in a call tree format, which can be sorted by largest concurrent allocation,
 total number of blocks, or number of unfreed allocation blocks.
 
+# Installing prebuilt binaries
+
+The easiest way to get started with allocscope is to install prebuilt binaries.
+
+To install the latest version:
+
+`curl -s https://allocscope.com/install.sh | sudo sh`
+
+Currently only Linux on x86_64 processors is supported, but I'd like to support more operating systems
+and processors in the future.
+
+# Building from source
+
+On recent Ubuntu releases, allocscope can be built from source with the following sequence
+of commands:
+
+```
+apt-get update
+apt-get install cargo git libclang-dev libiberty-dev libncurses-dev libsqlite3-dev libunwind-dev
+git clone https://github.com/matt-kimball/allocscope.git
+cd allocscope
+cargo install --path allocscope-trace
+cargo install --path allocscope-view
+```
+
+# Support development
+
+If you find allocscope useful, please consider supporting development.
+
+Visit https://allocscope.com/support
+
 # License
 
 allocscope is licensed GNU General Public License version 3.

allocscope-view/src/report.rs

@@ -102,7 +102,7 @@ pub fn generate_report(trace: trace::Trace) -> Result<(), Box<dyn Error>> {
         rows::iter_stackentry_rows(&mut transaction, rows::SortMode::Bytes, None, 0, row_count)?;
 
     println!("allocscope {} memory report", env!("CARGO_PKG_VERSION"));
-    println!("https://support.mkimball.net/");
+    println!("https://allocscope.com/support");
     println!("");
     println!("BYTES BLOCK LEAKS   Function");
     for entry in rows {

allocscope-view/src/ui.rs

@@ -155,7 +155,7 @@ impl UIState {
 
         let width = self.screen.get_max_x();
         let mut support_link = format!(
-            "https://support.mkimball.net/  {} ",
+            "https://allocscope.com/support  {} ",
             env!("CARGO_PKG_VERSION")
         );
         while (support_link.len() as i32) < width - self.screen.get_cur_x() {